An issue was discovered in OpenPOWER 2.6 firmware.
Priority MEDIUM 44CWE-681Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
An issue was discovered in OpenPOWER 2.6 firmware. unpack_timestamp() calls le32_to_cpu() for endian conversion of a uint16_t "year" value, resulting in a type mismatch that can truncate a higher integer value to a smaller one, and bypass a timestamp check. The fix is to use the right endian conversion function.
Why it matters now
EPSS 0.01175 67th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:openpowerfoundation:skiboot:2.6:*:*:*:*:*:*:* | 2.6 | Vulnerable | Openpowerfoundation |
- cpe:2.3:o:openpowerfoundation:skiboot:2.6:*:*:*:*:*:*:* Versions 2.6 Vulnerable ·Openpowerfoundation
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-36357
- 2026-10-03 Alias added: GHSA-6552-8jmj-f95c
References
Sources
- CVE-2021-36357 · CVE Program
- CVE-2021-36357 · NVD
- FIRST EPSS
- GHSA-6552-8jmj-f95c · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences