Vulnerability in GNU Glibc
CVE-2025-4802
Untrusted LD_LIBRARY_PATH environment variable vulnerability in the GNU C Library version 2.27 to 2.38 allows attacker controlled loading of dynamically shared library in statically compiled setuid binaries that call dlopen (including internal dlopen calls after setlocale or calls to NSS functions such as getaddrinfo).
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (46.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 46.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: +0.000
Affected products
- GNU Glibc
- The GNU C Library Glibc — versions 2.27
Weakness classification (CWE)
Public proof-of-concept exploits
References
- 3ff69d7a-14f2-4f67-a097-88dee7810d18 (Patch)
- 3ff69d7a-14f2-4f67-a097-88dee7810d18 (Issue Tracking)
- af854a3a-2127-422b-91ae-364da2661108 (Mailing List)
- af854a3a-2127-422b-91ae-364da2661108 (Exploit, Mailing List)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2025-4802?
- CVE-2025-4802 is a high-severity vulnerability in GNU Glibc, classified under Untrusted Search Path. CVSS score: 7.8/10. Published 2025-05-16.
- How severe is CVE-2025-4802?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2025-4802 known to be exploited?
- 12 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.