Red Hat Security Advisory: glibc security update
The glibc packages provide the standard C libraries (libc), POSIX thread libraries (libpthread), standard math libraries (libm), and the name service cache daemon (nscd) used by multiple programs on the system. Without these libraries, the Linux system cannot function correctly. Security Fix(es): * glibc: Vector register overwrite bug in glibc (CVE-2025-5702) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
AI Analysis
Technical Summary
CVE-2025-5702 is a vulnerability in the glibc packages that provide standard C libraries, POSIX thread libraries, math libraries, and the name service cache daemon on Red Hat Enterprise Linux 9. The issue is a vector register overwrite bug that could impact multiple programs relying on these libraries. Red Hat Product Security has issued an advisory (RHSA-2025:9877) describing this moderate severity security update. The advisory covers various Red Hat Enterprise Linux 9 variants and related products. No CVSS score is provided in the advisory, and no known exploits in the wild have been reported at this time.
Potential Impact
The vulnerability affects critical system libraries (glibc) that are fundamental to Linux system operations. Exploitation could cause incorrect behavior or crashes in programs using these libraries. The Red Hat advisory rates the impact as moderate, indicating a security risk that should be addressed but not classified as critical or high. There are no reports of active exploitation in the wild.
Mitigation Recommendations
Red Hat has released updated glibc packages for Red Hat Enterprise Linux 9 and its variants that fix this vulnerability. Users should apply the security update as described in Red Hat advisory RHSA-2025:9877 and the referenced update article (https://access.redhat.com/articles/11258). Since this is an official fix, applying the update fully mitigates the vulnerability. No additional mitigation steps are indicated by the vendor.
Red Hat Security Advisory: glibc security update
Description
The glibc packages provide the standard C libraries (libc), POSIX thread libraries (libpthread), standard math libraries (libm), and the name service cache daemon (nscd) used by multiple programs on the system. Without these libraries, the Linux system cannot function correctly. Security Fix(es): * glibc: Vector register overwrite bug in glibc (CVE-2025-5702) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2025-5702 is a vulnerability in the glibc packages that provide standard C libraries, POSIX thread libraries, math libraries, and the name service cache daemon on Red Hat Enterprise Linux 9. The issue is a vector register overwrite bug that could impact multiple programs relying on these libraries. Red Hat Product Security has issued an advisory (RHSA-2025:9877) describing this moderate severity security update. The advisory covers various Red Hat Enterprise Linux 9 variants and related products. No CVSS score is provided in the advisory, and no known exploits in the wild have been reported at this time.
Potential Impact
The vulnerability affects critical system libraries (glibc) that are fundamental to Linux system operations. Exploitation could cause incorrect behavior or crashes in programs using these libraries. The Red Hat advisory rates the impact as moderate, indicating a security risk that should be addressed but not classified as critical or high. There are no reports of active exploitation in the wild.
Mitigation Recommendations
Red Hat has released updated glibc packages for Red Hat Enterprise Linux 9 and its variants that fix this vulnerability. Users should apply the security update as described in Red Hat advisory RHSA-2025:9877 and the referenced update article (https://access.redhat.com/articles/11258). Since this is an official fix, applying the update fully mitigates the vulnerability. No additional mitigation steps are indicated by the vendor.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2025:9877
- Cve Count
- 1
Threat ID: 6a3da1cd4853345fc18234ab
Added to database: 06/25/2026, 21:46:53 UTC
Last enriched: 06/25/2026, 22:05:22 UTC
Last updated: 09/10/2026, 19:36:51 UTC
Views: 34
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