VULNERABILITY INTELLIGENCE

CVE-2021-36357

CVSS score9.8 CRITICAL
EPSS probability1.18%
CISA KEVNot currently listed
Published2021-10-22
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

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.

Weakness classification

  • nvd@nist.gov: CWE-681

Primary references