CVE-2022-29276

Name: CVE-2022-29276
Creator: NVD / NIST
Published: 2022-11-15T22:15:10.087+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.2/10EPSS 0.19%

Last modified Jun 17, 2026

CVE-2022-29276 is a high-severity vulnerability rated 8.2/10 on the CVSS scale. SMI functions in AhciBusDxe use untrusted inputs leading to corruption of SMRAM. SMI functions in AhciBusDxe use untrusted inputs leading to corruption of SMRAM. EPSS estimates a 0.19% chance of exploitation in the next 30 days.

Description

SMI functions in AhciBusDxe use untrusted inputs leading to corruption of SMRAM. SMI functions in AhciBusDxe use untrusted inputs leading to corruption of SMRAM. This issue was discovered by Insyde during security review. It was fixed in: Kernel 5.0: version 05.09.18 Kernel 5.1: version 05.17.18 Kernel 5.2: version 05.27.18 Kernel 5.3: version 05.36.18 Kernel 5.4: version 05.44.18 Kernel 5.5: version 05.52.18 https://www.insyde.com/security-pledge/SA-2022059

Metrics

CVSS 3.1

8.2/10

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

EPSS Probability

0.19%

9.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Insyde	Kernel	>= 5.0, < 5.0.05.09.18
Insyde	Kernel	>= 5.1, < 5.1.05.17.18
Insyde	Kernel	>= 5.2, < 5.2.05.27.18
Insyde	Kernel	>= 5.3, < 5.3.05.36.18
Insyde	Kernel	>= 5.4, < 5.4.05.44.18
Insyde	Kernel	>= 5.5, < 5.5.05.52.18

References

https://www.insyde.com/security-pledgeVendor Advisory
https://www.insyde.com/security-pledge/SA-2022059Vendor Advisory
https://www.insyde.com/security-pledgeVendor Advisory
https://www.insyde.com/security-pledge/SA-2022059Vendor Advisory

Timeline

Published: Nov 15, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-29276?

How severe is CVE-2022-29276?

CVE-2022-29276 has a CVSS score of 8.2/10 (HIGH severity). The EPSS model estimates a 0.19% probability of exploitation in the next 30 days.

How do I fix CVE-2022-29276?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-29276?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST