# What is CVE-2022-29277? > CVE-2022-29277 is a high-severity flaw (CVSS 8.8) in Alder Lake from Intel, published on 15 November 2022. It is not on the list of flaws known to be exploited today. The latest forecast puts its chance of use in the next 30 days at 0.2%. If you run an affected version, plan in the vendor’s fix. Canonical page: https://www.precursorintelligence.com/what-is/cve-2022-29277 ## At a glance - **Verdict:** Plan it in. No sign of exploitation and a low forecast. Patch it in your normal update cycle. - **Precursor Intelligence risk score:** 46 out of 100 (Medium); action: Plan remediation. Kept up to date as the evidence changes. - **Severity:** High (CVSS 8.8 out of 10) - **Known to be exploited:** No, not on the list of flaws known to be exploited today - **Chance of use in the next 30 days:** 0.2% (latest exploit-likelihood forecast) - **Published:** 15 November 2022 - **Record last updated:** 30 April 2025 - **Main product:** Alder Lake from Intel - **Affected products:** 78 ## What is CVE-2022-29277? In plain terms An attacker has to be already on the device with an ordinary user account, and nobody has to click anything. If it works, the attacker can read data, change data and take it offline. ### The official description Incorrect pointer checks within the the FwBlockServiceSmm driver can allow arbitrary RAM modifications During review of the FwBlockServiceSmm driver, certain instances of SpiAccessLib could be tricked into writing 0xff to arbitrary system and SMRAM addresses. Fixed in: INTEL Purley-R: 05.21.51.0048 Whitley: 05.42.23.0066 Cedar Island: 05.42.11.0021 Eagle Stream: 05.44.25.0052 Greenlow/Greenlow-R(skylake/kabylake): Trunk Mehlow/Mehlow-R (CoffeeLake-S): Trunk Tatlow (RKL-S): Trunk Denverton: 05.10.12.0042 Snow Ridge: Trunk Graneville DE: 05.05.15.0038 Grangeville DE NS: 05.27.26.0023 Bakerville: 05.21.51.0026 Idaville: 05.44.27.0030 Whiskey Lake: Trunk Comet Lake-S: Trunk Tiger Lake H/UP3: 05.43.12.0052 Alder Lake: 05.44.23.0047 Gemini Lake: Not Affected Apollo Lake: Not Affected Elkhart Lake: 05.44.30.0018 AMD ROME: trunk MILAN: 05.36.10.0017 GENOA: 05.52.25.0006 Snowy Owl: Trunk R1000: 05.32.50.0018 R2000: 05.44.30.0005 V2000: Trunk V3000: 05.44.30.0007 Ryzen 5000: 05.44.30.0004 Embedded ROME: Trunk Embedded MILAN: Trunk Hygon Hygon #1/#2: 05.36.26.0016 Hygon #3: 05.44.26.0007 https://www.insyde.com/security-pledge/SA-2022060 ### What kind of flaw is it? - CWE-787: Out-of-bounds Write ### How an attack on it works - Where an attacker can be: Already on the device - How hard it is to pull off: Easy: no special conditions - Login needed first: An ordinary user account - Does someone have to click: No, nobody has to do anything - What an attacker gets: Can read data, change data and take it offline Severity vector: `CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H` ## Is CVE-2022-29277 being exploited? Not that we know of It is not on the list of flaws known to be exploited today. The latest forecast puts the chance of it being used in the next 30 days at 0.2%. That can change at any time, which is why we keep watching. Exploit likelihood over the last 7 days: 0.2%, 0.2%, 0.2%, 0.2%, 0.2%, 0.2%, 0.2%. ### Timeline - 15 November 2022: Published - 30 April 2025: Record last updated ### How Precursor Intelligence ranks it CVE-2022-29277 scores **46 out of 100 (Medium)**, with the action "Plan remediation". Every published flaw gets a risk score from 0 to 100, kept up to date as the evidence changes. Four things go into the score, from the one that counts most to the ones that count less: - Evidence it is being exploited: biggest factor - How severe it is: strong factor - How widely exposed it is: smaller factor - Threat activity around it: smaller factor 85 and above is Critical. Anything confirmed as exploited is always marked for an emergency patch, whatever its score. When this flaw matches software you track, it lands in your list with its score and the reasons behind it. ## Who is affected by CVE-2022-29277? The published record lists 78 products. Versions are as published: "before 05.36.10.0017" means every version up to, but not including, 05.36.10.0017. - [Alder Lake](https://www.precursorintelligence.com/product/intel/alder_lake) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Hardware): version not specified - [Milan Firmware](https://www.precursorintelligence.com/product/amd/milan_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before 05.36.10.0017, before 05.36.26.0016 - [Rome Firmware](https://www.precursorintelligence.com/product/amd/rome_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before 05.36.10.0017, before 05.36.26.0016 - [Alder Lake Firmware](https://www.precursorintelligence.com/product/intel/alder_lake_firmware) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Operating system): before 05.44.23.0047 - [Bakerville](https://www.precursorintelligence.com/product/intel/bakerville) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Hardware): version not specified - [Bakerville Firmware](https://www.precursorintelligence.com/product/intel/bakerville_firmware) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Operating system): before 05.21.51.0026 - [Cedar Island](https://www.precursorintelligence.com/product/intel/cedar_island) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Hardware): version not specified - [Cedar Island Firmware](https://www.precursorintelligence.com/product/intel/cedar_island_firmware) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Operating system): before 05.42.11.0021 - [Comet Lake-S](https://www.precursorintelligence.com/product/intel/comet_lake-s) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Hardware): version not specified - [Comet Lake-S Firmware](https://www.precursorintelligence.com/product/intel/comet_lake-s_firmware) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Operating system): before 05.43.12.0052 - [Denverton](https://www.precursorintelligence.com/product/intel/denverton) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Hardware): version not specified - [Denverton Firmware](https://www.precursorintelligence.com/product/intel/denverton_firmware) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Operating system): before 05.10.12.0042 - [Eagle Stream](https://www.precursorintelligence.com/product/intel/eagle_stream) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Hardware): version not specified - [Eagle Stream Firmware](https://www.precursorintelligence.com/product/intel/eagle_stream_firmware) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Operating system): before 05.44.25.0052 - [Genoa](https://www.precursorintelligence.com/product/amd/genoa) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Genoa Firmware](https://www.precursorintelligence.com/product/amd/genoa_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before 05.52.25.0006 - [Grangeville De Ns](https://www.precursorintelligence.com/product/intel/grangeville_de_ns) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Hardware): version not specified - [Grangeville De Ns Firmware](https://www.precursorintelligence.com/product/intel/grangeville_de_ns_firmware) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Operating system): before 05.27.26.0023 - [Granville De](https://www.precursorintelligence.com/product/intel/granville_de) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Hardware): version not specified - [Granville De Firmware](https://www.precursorintelligence.com/product/intel/granville_de_firmware) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Operating system): before 05.05.15.0038 - [Greenlow](https://www.precursorintelligence.com/product/intel/greenlow) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Hardware): version not specified - [Greenlow Firmware](https://www.precursorintelligence.com/product/intel/greenlow_firmware) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Operating system): before 05.10.12.0042 - [Greenlow-R](https://www.precursorintelligence.com/product/intel/greenlow-r) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Hardware): version not specified - [Greenlow-R Firmware](https://www.precursorintelligence.com/product/intel/greenlow-r_firmware) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Operating system): before 05.10.12.0042 - [Hygon 1](https://www.precursorintelligence.com/product/amd/hygon_1) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Hygon 1 Firmware](https://www.precursorintelligence.com/product/amd/hygon_1_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before 05.36.26.0016 - [Hygon 2](https://www.precursorintelligence.com/product/amd/hygon_2) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Hygon 2 Firmware](https://www.precursorintelligence.com/product/amd/hygon_2_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before 05.36.26.0016 - [Hygon 3](https://www.precursorintelligence.com/product/amd/hygon_3) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Hygon 3 Firmware](https://www.precursorintelligence.com/product/amd/hygon_3_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before 05.44.26.0007 - [Idaville](https://www.precursorintelligence.com/product/intel/idaville) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Hardware): version not specified - [Idaville Firmware](https://www.precursorintelligence.com/product/intel/idaville_firmware) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Operating system): before 05.43.12.0052 - [Mehlow](https://www.precursorintelligence.com/product/intel/mehlow) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Hardware): version not specified - [Mehlow Firmware](https://www.precursorintelligence.com/product/intel/mehlow_firmware) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Operating system): before 05.10.12.0042 - [Mehlow-R](https://www.precursorintelligence.com/product/intel/mehlow-r) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Hardware): version not specified - [Mehlow-R Firmware](https://www.precursorintelligence.com/product/intel/mehlow-r_firmware) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Operating system): before 05.10.12.0042 - [Milan](https://www.precursorintelligence.com/product/amd/milan) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Purley-R](https://www.precursorintelligence.com/product/intel/purley-r) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Hardware): version not specified - [Purley-R Firmware](https://www.precursorintelligence.com/product/intel/purley-r_firmware) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Operating system): before 05.21.51.0048 - [Rome](https://www.precursorintelligence.com/product/amd/rome) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 5300g](https://www.precursorintelligence.com/product/amd/ryzen_5300g) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 5300g Firmware](https://www.precursorintelligence.com/product/amd/ryzen_5300g_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before 05.44.30.0004 - [Ryzen 5300ge](https://www.precursorintelligence.com/product/amd/ryzen_5300ge) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 5300ge Firmware](https://www.precursorintelligence.com/product/amd/ryzen_5300ge_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before 05.44.30.0004 - [Ryzen 5600g](https://www.precursorintelligence.com/product/amd/ryzen_5600g) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 5600g Firmware](https://www.precursorintelligence.com/product/amd/ryzen_5600g_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before 05.44.30.0004 - [Ryzen 5600ge](https://www.precursorintelligence.com/product/amd/ryzen_5600ge) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 5600ge Firmware](https://www.precursorintelligence.com/product/amd/ryzen_5600ge_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before 05.44.30.0004 - [Ryzen 5600x](https://www.precursorintelligence.com/product/amd/ryzen_5600x) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 5600x Firmware](https://www.precursorintelligence.com/product/amd/ryzen_5600x_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before 05.44.30.0004 - [Ryzen 5700g](https://www.precursorintelligence.com/product/amd/ryzen_5700g) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 5700g Firmware](https://www.precursorintelligence.com/product/amd/ryzen_5700g_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before 05.44.30.0004 - [Ryzen 5700ge](https://www.precursorintelligence.com/product/amd/ryzen_5700ge) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 5700ge Firmware](https://www.precursorintelligence.com/product/amd/ryzen_5700ge_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before 05.44.30.0004 - [Ryzen 5800x](https://www.precursorintelligence.com/product/amd/ryzen_5800x) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 5800x Firmware](https://www.precursorintelligence.com/product/amd/ryzen_5800x_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before 05.44.30.0004 - [Ryzen 5800x3d](https://www.precursorintelligence.com/product/amd/ryzen_5800x3d) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 5800x3d Firmware](https://www.precursorintelligence.com/product/amd/ryzen_5800x3d_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before 05.44.30.0004 - [Ryzen 5900x](https://www.precursorintelligence.com/product/amd/ryzen_5900x) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 5900x Firmware](https://www.precursorintelligence.com/product/amd/ryzen_5900x_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before 05.44.30.0004 - [Ryzen 5950x](https://www.precursorintelligence.com/product/amd/ryzen_5950x) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Ryzen 5950x Firmware](https://www.precursorintelligence.com/product/amd/ryzen_5950x_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before 05.44.30.0004 - [Snowy Owl R1000](https://www.precursorintelligence.com/product/amd/snowy_owl_r1000) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Snowy Owl R1000 Firmware](https://www.precursorintelligence.com/product/amd/snowy_owl_r1000_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before 05.32.50.0018 - [Snowy Owl R2000](https://www.precursorintelligence.com/product/amd/snowy_owl_r2000) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Snowy Owl R2000 Firmware](https://www.precursorintelligence.com/product/amd/snowy_owl_r2000_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before 05.44.30.0005 - [Snowy Owl V2000](https://www.precursorintelligence.com/product/amd/snowy_owl_v2000) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Snowy Owl V2000 Firmware](https://www.precursorintelligence.com/product/amd/snowy_owl_v2000_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before 05.44.30.0007 - [Snowy Owl V3000](https://www.precursorintelligence.com/product/amd/snowy_owl_v3000) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Hardware): version not specified - [Snowy Owl V3000 Firmware](https://www.precursorintelligence.com/product/amd/snowy_owl_v3000_firmware) by [Amd](https://www.precursorintelligence.com/vendors/amd) (Operating system): before 05.44.30.0007 - [Tatlow](https://www.precursorintelligence.com/product/intel/tatlow) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Hardware): version not specified - [Tatlow Firmware](https://www.precursorintelligence.com/product/intel/tatlow_firmware) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Operating system): before 05.10.12.0042 - Tiger Lake H/up3 by [Intel](https://www.precursorintelligence.com/vendors/intel) (Hardware): version not specified - Tiger Lake H/up3 Firmware by [Intel](https://www.precursorintelligence.com/vendors/intel) (Operating system): before 05.43.12.0052 - [Whiskey Lake](https://www.precursorintelligence.com/product/intel/whiskey_lake) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Hardware): version not specified - [Whiskey Lake Firmware](https://www.precursorintelligence.com/product/intel/whiskey_lake_firmware) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Operating system): before 05.43.12.0052 - [Whitley](https://www.precursorintelligence.com/product/intel/whitley) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Hardware): version not specified - [Whitley Firmware](https://www.precursorintelligence.com/product/intel/whitley_firmware) by [Intel](https://www.precursorintelligence.com/vendors/intel) (Operating system): before 05.42.23.0066 ## How do I fix CVE-2022-29277? 1. **Check whether you run it.** Compare your versions with the affected products above. Not sure what you run? Precursor Intelligence can work it out from your public website, or you can pick it from a list. 2. **Apply the vendor’s fix.** Install the update named in the vendor’s advisory. We’ve put the advisories and patch notes first in the list. 3. **If you can’t patch today.** Follow any mitigation the vendor publishes, and limit who can reach the affected system from the internet until the update is in. 4. **Keep an eye on it.** Track the product and we tell you as soon as we spot this flaw on the list of exploited flaws, or a jump in its exploit likelihood. ### References - [insyde.com](https://www.insyde.com/security-pledge) (Vendor advisory) - [insyde.com](https://www.insyde.com/security-pledge/SA-2022060) (Vendor advisory) ## Questions ### What is CVE-2022-29277? CVE-2022-29277 is a high-severity flaw in Alder Lake from Intel, published on 15 November 2022. An attacker has to be already on the device with an ordinary user account, and nobody has to click anything. If it works, the attacker can read data, change data and take it offline. ### How serious is CVE-2022-29277? It scores 8.8 out of 10 on the CVSS severity scale, which is high. Our risk score for CVE-2022-29277 is 46 out of 100, which is Medium. Its action is "Plan remediation". No sign of exploitation and a low forecast. Patch it in your normal update cycle. ### Is CVE-2022-29277 being exploited? It is not on the list of flaws known to be exploited today. The latest forecast puts the chance of it being used in the next 30 days at 0.2%. That can change at any time, which is why we keep watching. ### Which versions does CVE-2022-29277 affect? For Alder Lake from Intel: version not specified. The record lists 78 products in all, each with its versions, under "Who is affected" on this page. ### How do I fix CVE-2022-29277? Install the update the vendor names in its advisory, linked first under "How do I fix" on this page. If you can't patch today, follow the vendor's mitigation and limit who can reach the affected system from the internet. ## Does CVE-2022-29277 affect you? Precursor Intelligence keeps checking for you: - **Tell us what you run.** Pick your software from a list, or let us work it out from your website. - **We match it to every flaw.** Over 400,000 published flaws, checked against your list. - **Ranked by real-world risk.** Every flaw gets a 0 to 100 risk score, kept up to date, led by evidence criminals are using it. - **Told as soon as we know.** An alert by email, in the app or by webhook to your own tools. Start free (no card, nothing to install): https://www.precursorintelligence.com/register Book a demo: https://www.precursorintelligence.com/contact