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CVE-2023-22613

26
FAUCET Score

CVE-2023-22613 is a high-severity memory corruption vulnerability affecting Insyde InsydeH2O firmware kernels 5.0 through 5.5. An attacker with local privileges can exploit a flaw in the IhisiSmm component by providing a malformed pointer, leading to System Management Mode (SMM) memory corruption. This could result in a complete compromise of confidentiality, integrity, and availability. While the CVSS score is 8.8 (High), there is currently no public exploit code, active exploitation, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
05.27.37CPE matchmatch criteria
cpe:2.3:a:insyde:insydeh2o:05.27.37:*:*:*:*:*:*:*
05.36.37CPE matchmatch criteria
cpe:2.3:a:insyde:insydeh2o:05.36.37:*:*:*:*:*:*:*
05.44.45CPE matchmatch criteria
cpe:2.3:a:insyde:insydeh2o:05.44.45:*:*:*:*:*:*:*
05.52.45CPE matchmatch criteria
cpe:2.3:a:insyde:insydeh2o:05.52.45:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.0
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.21%
Probability of exploitation in next 30 days
EPSS Percentile
11.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0021 is in the 40th percentile among its peer group of 17,061 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

research.nccgroup.com / 2023/04/11/stepping-insyde-system-management-mode
Not Applicable
insyde.com / security-pledge
Vendor Advisory
insyde.com / security-pledge/SA-2023023
Vendor Advisory