High severity8.2NVD Advisory· Published Feb 3, 2022· Updated Aug 11, 2026

CVE-2021-42060

Description

An issue was discovered in Insyde InsydeH2O Kernel 5.0 through 05.08.41, Kernel 5.1 through 05.16.41, Kernel 5.2 before 05.23.22, and Kernel 5.3 before 05.32.22. An Int15ServiceSmm SMM callout vulnerability allows an attacker to hijack execution flow of code running in System Management Mode. Exploiting this issue could lead to escalating privileges to SMM.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Insyde/InsydeH2O2 versions
cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*range: >=5.2,<5.23.35
- (no CPE)range: 5.0 through 05.08.41, 5.1 through 05.16.41, 5.2 before 05.23.22, and 5.3 before 05.32.22
Insyde/InsydeH2O Kerneldescription

Patches

Vulnerability mechanics

References

cert-portal.siemens.com/productcert/pdf/ssa-306654.pdfnvdThird Party Advisory
security.netapp.com/advisory/ntap-20220217-0015/nvdThird Party Advisory
www.insyde.com/security-pledgenvdVendor Advisory
www.insyde.com/security-pledge/SA-2022007nvdVendor Advisory
cert-portal.siemens.com/productcert/html/ssa-306654.htmlnvd
www.kb.cert.org/vuls/id/796611nvd

News mentions

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