Vulnerability in Gnu Glibc
CVE-2025-5702
The strcmp implementation optimized for the Power10 processor in the GNU C Library version 2.39 and later writes to vector registers v20 to v31 without saving contents from the caller (those registers are defined as non-volatile registers by the powerpc64le ABI), resulting in overwriting of its contents and potentially altering control flow of the caller, or leaking the input strings to the function to other parts of the program.
Vulnerability class: Dirty Pipe (CVE-2022-0847)
EPSS: 0.002 (16.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.6 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L.
Affected products
- Gnu Glibc
- The Gnu C Library Glibc — versions 2.39
Weakness classification (CWE)
Public proof-of-concept exploits
References
- 3ff69d7a-14f2-4f67-a097-88dee7810d18 (Issue Tracking)
Frequently asked questions
- What is CVE-2025-5702?
- CVE-2025-5702 is a medium-severity vulnerability in Gnu Glibc, classified under Improper Initialization. CVSS score: 5.6/10. Published 2025-06-05.
- How severe is CVE-2025-5702?
- Medium severity. CVSS v3 base score is 5.6 out of 10.
- Is CVE-2025-5702 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.