CVE-2023-22616: insyde insydeh2o
CVSS: 7.8v3.1HighModified
Published 12-04-2023Last modified 10-02-2025
Vulnerability summary
CVE-2023-22616 is a high (CVSS 7.8) vulnerability in insyde insydeh2o. EPSS estimates a 0.37% chance of exploitation in the next 30 days, higher than 29.6% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
7.8/10
010
High · v3.1 (CVE.org)EPSS score
0.37%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Timeline
- 12-04-2023PublishedVulnerability first disclosed.
- 10-02-2025Last modifiedVulnerability information updated.
Description
An issue was discovered in Insyde InsydeH2O with kernel 5.2 through 5.5. The Save State register is not checked before use. The IhisiSmm driver does not check the value of a save state register before use. Due to insufficient input validation, an attacker can corrupt SMRAM.
CVSS metrics
2 scores · 2 sources · 1 versionHigh 7.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSourcesAll 2 agree
- NVDNIST7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.37%
Chance of exploitation in the next 30 days
Percentile
30%
Versus all other CVEs
30-day change
0.00 pp
From 0.37% on 21-09-2026
21-09-202621-10-2026
EPSS score0.37%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (research.nccgroup.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Insyde1 product
- insydeh2o≥ 5.2, ≤ 5.5
1 vendor · 1 product
References
3 links- www.insyde.com/security-pledgeVendor Advisory
- www.insyde.com/security-pledge/SA-2023022Vendor Advisory