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CVE-2022-29276

26
FAUCET Score

CVE-2022-29276 is a high-severity vulnerability affecting Insyde Kernel versions 5.0 through 5.5, where untrusted inputs in AhciBusDxe SMI functions can lead to SMRAM corruption. With a CVSS score of 8.2, a high-privileged local attacker can achieve significant impact on confidentiality, integrity, and availability. There is currently no public exploit code available, nor any evidence of active exploitation or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.0, < 5.0.05.09.18CPE matchmatch criteria
cpe:2.3:o:insyde:kernel:*:*:*:*:*:*:*:*
>= 5.1, < 5.1.05.17.18CPE matchmatch criteria
cpe:2.3:o:insyde:kernel:*:*:*:*:*:*:*:*
>= 5.2, < 5.2.05.27.18CPE matchmatch criteria
cpe:2.3:o:insyde:kernel:*:*:*:*:*:*:*:*
>= 5.3, < 5.3.05.36.18CPE matchmatch criteria
cpe:2.3:o:insyde:kernel:*:*:*:*:*:*:*:*
>= 5.4, < 5.4.05.44.18CPE matchmatch criteria
cpe:2.3:o:insyde:kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.2HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.5
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.19%
Probability of exploitation in next 30 days
EPSS Percentile
9.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0019 is in the 29th percentile among its peer group of 360 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

insyde.com / security-pledge
Vendor Advisory
insyde.com / security-pledge/SA-2022059
Vendor Advisory