CVE-2023-22614: insyde insydeh2o Out-of-bounds Write
CVSS: 8.8v3.1HighModified
Published 11-04-2023Last modified 11-02-2025
Vulnerability summary
CVE-2023-22614 is a high (CVSS 8.8) Out-of-bounds Write vulnerability in insyde insydeh2o. EPSS estimates a 0.38% chance of exploitation in the next 30 days, higher than 30.4% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
8.8/10
010
High · v3.1 (CVE.org)EPSS score
0.38%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Timeline
- 11-04-2023PublishedVulnerability first disclosed.
- 11-02-2025Last modifiedVulnerability information updated.
Description
An issue was discovered in ChipsetSvcSmm in Insyde InsydeH2O with kernel 5.0 through 5.5. There is insufficient input validation in BIOS Guard updates. An attacker can induce memory corruption in SMM by supplying malformed inputs to the BIOS Guard SMI handler.
CVSS metrics
2 scores · 2 sources · 1 versionHigh 8.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:HSourcesAll 2 agree
- NVDNIST8.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
EPSS trend
Probability
0.38%
Chance of exploitation in the next 30 days
Percentile
30%
Versus all other CVEs
30-day change
0.00 pp
From 0.38% on 21-09-2026
21-09-202621-10-2026
EPSS score0.38%
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
- insydeh2o05.42.52.0026 | 05.43.01.0026 | 05.43.12.0056 | 05.44.34.0054 | 05.44.45.0015 | 05.44.45.0028
1 vendor · 1 product
References
3 links- www.insyde.com/security-pledgeVendor Advisory
- www.insyde.com/security-pledge/SA-2023020Vendor Advisory