CVE-2022-35897
mediumpriority · track · 27EPSS 0.004 · 33 %ileEUUSEPSS · scored 2026-10-28
An stack buffer overflow vulnerability leads to arbitrary code execution issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. If the attacker modifies specific UEFI variables, it can cause a stack overflow, leading to arbitrary code execution. The specific variables are normally locked (read-only) at the OS level and therefore an attack would require direct SPI modification. If an attacker can change the values of at least two variables out of three (SecureBootEnforce, SecureBoot, RestoreBootSettings), it is possible to execute arbitrary code.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (8)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/cveshow/CVE-2022-35897/cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2022-35897cnnvd
- https://www.insyde.com/security-pledgecnnvd
- https://www.insyde.com/security-pledge/SA-2022041cnnvd
- https://www.insyde.com/security-pledgeenisa_euvd
- https://www.insyde.com/security-pledge/SA-2022041enisa_euvd
- https://www.insyde.com/security-pledgeVendor Advisorynvd
- https://www.insyde.com/security-pledge/SA-2022041Vendor Advisorynvd
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