# What is CVE-2022-30426?

> CVE-2022-30426 is a high-severity flaw (CVSS 7.8) in Altos T110 F3 Firmware from Acer, published on 23 September 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 0.4%. If you run an affected version, plan in the vendor’s fix.

Canonical page: https://www.precursorintelligence.com/what-is/cve-2022-30426

## 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:** 50 out of 100 (Medium); action: Plan remediation. Kept up to date as the evidence changes.
- **Severity:** High (CVSS 7.8 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:** 0.4% (latest exploit-likelihood forecast)
- **Published:** 23 September 2022
- **Record last updated:** 27 May 2025
- **Main product:** Altos T110 F3 Firmware from Acer
- **Affected products:** 68

## What is CVE-2022-30426? 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

There is a stack buffer overflow vulnerability, which could lead to arbitrary code execution in UEFI DXE driver on some Acer products. An attack could exploit this vulnerability to escalate privilege from ring 3 to ring 0, and hijack control flow during UEFI DXE execution. This affects Altos T110 F3 firmware version <= P13 (latest) and AP130 F2 firmware version <= P04 (latest) and Aspire 1600X firmware version <= P11.A3L (latest) and Aspire 1602M firmware version <= P11.A3L (latest) and Aspire 7600U firmware version <= P11.A4 (latest) and Aspire MC605 firmware version <= P11.A4L (latest) and Aspire TC-105 firmware version <= P12.B0L (latest) and Aspire TC-120 firmware version <= P11-A4 (latest) and Aspire U5-620 firmware version <= P11.A1 (latest) and Aspire X1935 firmware version <= P11.A3L (latest) and Aspire X3475 firmware version <= P11.A3L (latest) and Aspire X3995 firmware version <= P11.A3L (latest) and Aspire XC100 firmware version <= P11.B3 (latest) and Aspire XC600 firmware version <= P11.A4 (latest) and Aspire Z3-615 firmware version <= P11.A2L (latest) and Veriton E430G firmware version <= P21.A1 (latest) and Veriton B630_49 firmware version <= AAP02SR (latest) and Veriton E430 firmware version <= P11.A4 (latest) and Veriton M2110G firmware version <= P21.A3 (latest) and Veriton M2120G fir.

### 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:U/C:H/I:H/A:H`

## Is CVE-2022-30426 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 0.4%. That can change at any time, which is why we keep watching.

Exploit likelihood over the last 7 days: 0.4%, 0.4%, 0.4%, 0.4%, 0.4%, 0.4%, 0.4%.

### Timeline

- 23 September 2022: Published
- 27 May 2025: Record last updated

### How Precursor Intelligence ranks it

CVE-2022-30426 scores **50 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-2022-30426?

The published record lists 68 products. Versions are as published: "before p13" means every version up to, but not including, p13.

- [Altos T110 F3 Firmware](https://www.precursorintelligence.com/product/acer/altos_t110_f3_firmware) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Operating system): before p13
- [Altos T110 F3](https://www.precursorintelligence.com/product/acer/altos_t110_f3) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Hardware): version not specified
- [Ap130 F2](https://www.precursorintelligence.com/product/acer/ap130_f2) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Hardware): version not specified
- [Ap130 F2 Firmware](https://www.precursorintelligence.com/product/acer/ap130_f2_firmware) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Operating system): before p04
- [Aspire 1600x](https://www.precursorintelligence.com/product/acer/aspire_1600x) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Hardware): version not specified
- [Aspire 1600x Firmware](https://www.precursorintelligence.com/product/acer/aspire_1600x_firmware) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Operating system): before p11.a3l
- [Aspire 1602m](https://www.precursorintelligence.com/product/acer/aspire_1602m) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Hardware): version not specified
- [Aspire 1602m Firmware](https://www.precursorintelligence.com/product/acer/aspire_1602m_firmware) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Operating system): before p11.a3l
- [Aspire 7600u](https://www.precursorintelligence.com/product/acer/aspire_7600u) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Hardware): version not specified
- [Aspire 7600u Firmware](https://www.precursorintelligence.com/product/acer/aspire_7600u_firmware) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Operating system): before p11.a4
- [Aspire Mc605](https://www.precursorintelligence.com/product/acer/aspire_mc605) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Hardware): version not specified
- [Aspire Mc605 Firmware](https://www.precursorintelligence.com/product/acer/aspire_mc605_firmware) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Operating system): before p11.a4l
- [Aspire Tc-105](https://www.precursorintelligence.com/product/acer/aspire_tc-105) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Hardware): version not specified
- [Aspire Tc-105 Firmware](https://www.precursorintelligence.com/product/acer/aspire_tc-105_firmware) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Operating system): before p12.b0l
- [Aspire Tc-120](https://www.precursorintelligence.com/product/acer/aspire_tc-120) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Hardware): version not specified
- [Aspire Tc-120 Firmware](https://www.precursorintelligence.com/product/acer/aspire_tc-120_firmware) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Operating system): before p11-a4
- [Aspire U5-620](https://www.precursorintelligence.com/product/acer/aspire_u5-620) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Hardware): version not specified
- [Aspire U5-620 Firmware](https://www.precursorintelligence.com/product/acer/aspire_u5-620_firmware) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Operating system): before p11.a1
- [Aspire X1935](https://www.precursorintelligence.com/product/acer/aspire_x1935) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Hardware): version not specified
- [Aspire X1935 Firmware](https://www.precursorintelligence.com/product/acer/aspire_x1935_firmware) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Operating system): before p11.a3l
- [Aspire X3475](https://www.precursorintelligence.com/product/acer/aspire_x3475) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Hardware): version not specified
- [Aspire X3475 Firmware](https://www.precursorintelligence.com/product/acer/aspire_x3475_firmware) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Operating system): before p11.a3l
- [Aspire X3995](https://www.precursorintelligence.com/product/acer/aspire_x3995) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Hardware): version not specified
- [Aspire X3995 Firmware](https://www.precursorintelligence.com/product/acer/aspire_x3995_firmware) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Operating system): before p11.a3l
- [Aspire Xc100](https://www.precursorintelligence.com/product/acer/aspire_xc100) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Hardware): version not specified
- [Aspire Xc100 Firmware](https://www.precursorintelligence.com/product/acer/aspire_xc100_firmware) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Operating system): before p11.b3
- [Aspire Xc600](https://www.precursorintelligence.com/product/acer/aspire_xc600) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Hardware): version not specified
- [Aspire Xc600 Firmware](https://www.precursorintelligence.com/product/acer/aspire_xc600_firmware) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Operating system): before p11.a4
- [Aspire Z3-615](https://www.precursorintelligence.com/product/acer/aspire_z3-615) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Hardware): version not specified
- [Aspire Z3-615 Firmware](https://www.precursorintelligence.com/product/acer/aspire_z3-615_firmware) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Operating system): before p11.a2l
- [Veriton B630 49](https://www.precursorintelligence.com/product/acer/veriton_b630_49) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Hardware): version not specified
- [Veriton B630 49 Firmware](https://www.precursorintelligence.com/product/acer/veriton_b630_49_firmware) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Operating system): before aap02sr
- [Veriton E430](https://www.precursorintelligence.com/product/acer/veriton_e430) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Hardware): version not specified
- [Veriton E430 Firmware](https://www.precursorintelligence.com/product/acer/veriton_e430_firmware) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Operating system): before p11.a4
- [Veriton E430g](https://www.precursorintelligence.com/product/acer/veriton_e430g) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Hardware): version not specified
- [Veriton E430g Firmware](https://www.precursorintelligence.com/product/acer/veriton_e430g_firmware) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Operating system): before p21.a1
- [Veriton M2110g](https://www.precursorintelligence.com/product/acer/veriton_m2110g) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Hardware): version not specified
- [Veriton M2110g Firmware](https://www.precursorintelligence.com/product/acer/veriton_m2110g_firmware) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Operating system): before p21.a3
- [Veriton M2120g](https://www.precursorintelligence.com/product/acer/veriton_m2120g) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Hardware): version not specified
- [Veriton M2120g Firmware](https://www.precursorintelligence.com/product/acer/veriton_m2120g_firmware) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Operating system): before p11-a3
- [Veriton M2611](https://www.precursorintelligence.com/product/acer/veriton_m2611) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Hardware): version not specified
- [Veriton M2611 Firmware](https://www.precursorintelligence.com/product/acer/veriton_m2611_firmware) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Operating system): before p11.b0
- [Veriton M2611g](https://www.precursorintelligence.com/product/acer/veriton_m2611g) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Hardware): version not specified
- [Veriton M2611g Firmware](https://www.precursorintelligence.com/product/acer/veriton_m2611g_firmware) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Operating system): before p11-b0l
- [Veriton M4620](https://www.precursorintelligence.com/product/acer/veriton_m4620) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Hardware): version not specified
- [Veriton M4620 Firmware](https://www.precursorintelligence.com/product/acer/veriton_m4620_firmware) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Operating system): before p21.a3
- [Veriton M4620g](https://www.precursorintelligence.com/product/acer/veriton_m4620g) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Hardware): version not specified
- [Veriton M4620g Firmware](https://www.precursorintelligence.com/product/acer/veriton_m4620g_firmware) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Operating system): before p21.a3
- [Veriton M6620g](https://www.precursorintelligence.com/product/acer/veriton_m6620g) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Hardware): version not specified
- [Veriton M6620g Firmware](https://www.precursorintelligence.com/product/acer/veriton_m6620g_firmware) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Operating system): before p21.a0
- [Veriton N2620g](https://www.precursorintelligence.com/product/acer/veriton_n2620g) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Hardware): version not specified
- [Veriton N2620g Firmware](https://www.precursorintelligence.com/product/acer/veriton_n2620g_firmware) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Operating system): before p21.b0
- [Veriton N4620g](https://www.precursorintelligence.com/product/acer/veriton_n4620g) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Hardware): version not specified
- [Veriton N4620g Firmware](https://www.precursorintelligence.com/product/acer/veriton_n4620g_firmware) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Operating system): before p11.a2l
- [Veriton N4630g](https://www.precursorintelligence.com/product/acer/veriton_n4630g) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Hardware): version not specified
- [Veriton N4630g Firmware](https://www.precursorintelligence.com/product/acer/veriton_n4630g_firmware) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Operating system): before p21.b0
- [Veriton S6620g](https://www.precursorintelligence.com/product/acer/veriton_s6620g) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Hardware): version not specified
- [Veriton S6620g Firmware](https://www.precursorintelligence.com/product/acer/veriton_s6620g_firmware) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Operating system): before p11.a1
- [Veriton X2611](https://www.precursorintelligence.com/product/acer/veriton_x2611) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Hardware): version not specified
- [Veriton X2611 Firmware](https://www.precursorintelligence.com/product/acer/veriton_x2611_firmware) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Operating system): before p11.a4
- [Veriton X2611g](https://www.precursorintelligence.com/product/acer/veriton_x2611g) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Hardware): version not specified
- [Veriton X2611g Firmware](https://www.precursorintelligence.com/product/acer/veriton_x2611g_firmware) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Operating system): before p11.a4
- [Veriton X4620g](https://www.precursorintelligence.com/product/acer/veriton_x4620g) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Hardware): version not specified
- [Veriton X4620g Firmware](https://www.precursorintelligence.com/product/acer/veriton_x4620g_firmware) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Operating system): before p11.a3
- [Veriton X6620g](https://www.precursorintelligence.com/product/acer/veriton_x6620g) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Hardware): version not specified
- [Veriton X6620g Firmware](https://www.precursorintelligence.com/product/acer/veriton_x6620g_firmware) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Operating system): before p11.a3
- [Veriton Z2650g](https://www.precursorintelligence.com/product/acer/veriton_z2650g) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Hardware): version not specified
- [Veriton Z2650g Firmware](https://www.precursorintelligence.com/product/acer/veriton_z2650g_firmware) by [Acer](https://www.precursorintelligence.com/vendors/acer) (Operating system): before p21.a1

## How do I fix CVE-2022-30426?

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

- [acer.com](http://acer.com) (Vendor advisory)
- [altos.com](http://altos.com) (Broken link)
- [github.com](https://github.com/10TG/vulnerabilities/blob/main/Acer/CVE-2022-30426/CVE-2022-30426.md) (Exploit, Third-party advisory)

## Questions

### What is CVE-2022-30426?

CVE-2022-30426 is a high-severity flaw in Altos T110 F3 Firmware from Acer, published on 23 September 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-2022-30426?

It scores 7.8 out of 10 on the CVSS severity scale, which is high. Our risk score for CVE-2022-30426 is 50 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-2022-30426 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 0.4%. That can change at any time, which is why we keep watching.

### Which versions does CVE-2022-30426 affect?

For Altos T110 F3 Firmware from Acer: before p13. The record lists 68 products in all, each with its versions, under "Who is affected" on this page.

### How do I fix CVE-2022-30426?

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-2022-30426 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.

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