# What is CVE-2022-26441? > CVE-2022-26441 is a medium-severity flaw (CVSS 6.7) in Mt7603 Firmware from Mediatek, published on 1 August 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 0.3%. If you run an affected version, plan in the vendor’s fix. Canonical page: https://www.precursorintelligence.com/what-is/cve-2022-26441 ## 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:** 26 out of 100 (Low); action: Monitor. Kept up to date as the evidence changes. - **Severity:** Medium (CVSS 6.7 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:** 0.3% (latest exploit-likelihood forecast) - **Published:** 1 August 2022 - **Record last updated:** 5 August 2022 - **Main product:** Mt7603 Firmware from Mediatek - **Affected products:** 26 ## What is CVE-2022-26441? In plain terms An attacker has to be already on the device with an administrator account, and nobody has to click anything. If it works, the attacker can read data, change data and take it offline. ### The official description In wifi driver, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: GN20220420044; Issue ID: GN20220420044. ### 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 administrator 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:H/UI:N/S:U/C:H/I:H/A:H` ## Is CVE-2022-26441 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 0.3%. That can change at any time, which is why we keep watching. Exploit likelihood over the last 7 days: 0.3%, 0.3%, 0.3%, 0.3%, 0.3%, 0.3%, 0.3%. ### Timeline - 1 August 2022: Published - 5 August 2022: Record last updated ### How Precursor Intelligence ranks it CVE-2022-26441 scores **26 out of 100 (Low)**, with the action "Monitor". 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: key context - Real threat activity around it: key context 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-2022-26441? The published record lists 26 products. - [Mt7603 Firmware](https://www.precursorintelligence.com/product/mediatek/mt7603_firmware) by [Mediatek](https://www.precursorintelligence.com/vendors/mediatek) (Operating system): 7.6.2.3 - [Mt7603](https://www.precursorintelligence.com/product/mediatek/mt7603) by [Mediatek](https://www.precursorintelligence.com/vendors/mediatek) (Hardware): version not specified - [Mt7610](https://www.precursorintelligence.com/product/mediatek/mt7610) by [Mediatek](https://www.precursorintelligence.com/vendors/mediatek) (Hardware): version not specified - [Mt7610 Firmware](https://www.precursorintelligence.com/product/mediatek/mt7610_firmware) by [Mediatek](https://www.precursorintelligence.com/vendors/mediatek) (Operating system): 7.6.2.3 - [Mt7612](https://www.precursorintelligence.com/product/mediatek/mt7612) by [Mediatek](https://www.precursorintelligence.com/vendors/mediatek) (Hardware): version not specified - [Mt7612 Firmware](https://www.precursorintelligence.com/product/mediatek/mt7612_firmware) by [Mediatek](https://www.precursorintelligence.com/vendors/mediatek) (Operating system): 7.6.2.3 - [Mt7613](https://www.precursorintelligence.com/product/mediatek/mt7613) by [Mediatek](https://www.precursorintelligence.com/vendors/mediatek) (Hardware): version not specified - [Mt7613 Firmware](https://www.precursorintelligence.com/product/mediatek/mt7613_firmware) by [Mediatek](https://www.precursorintelligence.com/vendors/mediatek) (Operating system): 7.6.2.3 - [Mt7615](https://www.precursorintelligence.com/product/mediatek/mt7615) by [Mediatek](https://www.precursorintelligence.com/vendors/mediatek) (Hardware): version not specified - [Mt7615 Firmware](https://www.precursorintelligence.com/product/mediatek/mt7615_firmware) by [Mediatek](https://www.precursorintelligence.com/vendors/mediatek) (Operating system): 7.6.2.3 - [Mt7620](https://www.precursorintelligence.com/product/mediatek/mt7620) by [Mediatek](https://www.precursorintelligence.com/vendors/mediatek) (Hardware): version not specified - [Mt7620 Firmware](https://www.precursorintelligence.com/product/mediatek/mt7620_firmware) by [Mediatek](https://www.precursorintelligence.com/vendors/mediatek) (Operating system): 7.6.2.3 - [Mt7622](https://www.precursorintelligence.com/product/mediatek/mt7622) by [Mediatek](https://www.precursorintelligence.com/vendors/mediatek) (Hardware): version not specified - [Mt7622 Firmware](https://www.precursorintelligence.com/product/mediatek/mt7622_firmware) by [Mediatek](https://www.precursorintelligence.com/vendors/mediatek) (Operating system): 7.6.2.3 - [Mt7628](https://www.precursorintelligence.com/product/mediatek/mt7628) by [Mediatek](https://www.precursorintelligence.com/vendors/mediatek) (Hardware): version not specified - [Mt7628 Firmware](https://www.precursorintelligence.com/product/mediatek/mt7628_firmware) by [Mediatek](https://www.precursorintelligence.com/vendors/mediatek) (Operating system): 7.6.2.3 - [Mt7629](https://www.precursorintelligence.com/product/mediatek/mt7629) by [Mediatek](https://www.precursorintelligence.com/vendors/mediatek) (Hardware): version not specified - [Mt7629 Firmware](https://www.precursorintelligence.com/product/mediatek/mt7629_firmware) by [Mediatek](https://www.precursorintelligence.com/vendors/mediatek) (Operating system): 7.6.2.3 - [Mt7915](https://www.precursorintelligence.com/product/mediatek/mt7915) by [Mediatek](https://www.precursorintelligence.com/vendors/mediatek) (Hardware): version not specified - [Mt7915 Firmware](https://www.precursorintelligence.com/product/mediatek/mt7915_firmware) by [Mediatek](https://www.precursorintelligence.com/vendors/mediatek) (Operating system): 7.6.2.3 - [Mt7916](https://www.precursorintelligence.com/product/mediatek/mt7916) by [Mediatek](https://www.precursorintelligence.com/vendors/mediatek) (Hardware): version not specified - [Mt7916 Firmware](https://www.precursorintelligence.com/product/mediatek/mt7916_firmware) by [Mediatek](https://www.precursorintelligence.com/vendors/mediatek) (Operating system): 7.6.2.3 - [Mt7986](https://www.precursorintelligence.com/product/mediatek/mt7986) by [Mediatek](https://www.precursorintelligence.com/vendors/mediatek) (Hardware): version not specified - [Mt7986 Firmware](https://www.precursorintelligence.com/product/mediatek/mt7986_firmware) by [Mediatek](https://www.precursorintelligence.com/vendors/mediatek) (Operating system): 7.6.2.3 - [Mt8981](https://www.precursorintelligence.com/product/mediatek/mt8981) by [Mediatek](https://www.precursorintelligence.com/vendors/mediatek) (Hardware): version not specified - [Mt8981 Firmware](https://www.precursorintelligence.com/product/mediatek/mt8981_firmware) by [Mediatek](https://www.precursorintelligence.com/vendors/mediatek) (Operating system): 7.6.2.3 ## How do I fix CVE-2022-26441? 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 advisory 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 - [corp.mediatek.com](https://corp.mediatek.com/product-security-bulletin/August-2022) (Vendor advisory) ## Questions ### What is CVE-2022-26441? CVE-2022-26441 is a medium-severity flaw in Mt7603 Firmware from Mediatek, published on 1 August 2022. An attacker has to be already on the device with an administrator 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-2022-26441? It scores 6.7 out of 10 on the CVSS severity scale, which is medium. Our risk score for CVE-2022-26441 is 26 out of 100, which is Low. Its action is "Monitor". No sign of exploitation and a low forecast. Patch it in your normal update cycle. ### Is CVE-2022-26441 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 0.3%. That can change at any time, which is why we keep watching. ### Which versions does CVE-2022-26441 affect? For Mt7603 Firmware from Mediatek: 7.6.2.3. The record lists 26 products in all, each with its versions, under "Who is affected" on this page. ### How do I fix CVE-2022-26441? 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-2022-26441 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