CVEvulnerability
CVE-2026-5450
9.8 CRITICAL
Official page ↗
- Status
- Modified
- Published
- 2026-04-20
- Last modified
- 2026-07-14
- Assigner
- 3ff69d7a-14f2-4f67-a097-88dee7810d18
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-122, CWE-787
Description
Calling the scanf family of functions with a %mc (malloc'd character match) in the GNU C Library version 2.7 to version 2.43 with a format width specifier with an explicit width greater than 1024 could result in a one byte heap buffer overflow.
Affected configurations
• gnu glibc (>= 2.7 <= 2.43)
Related
References
- https://inbox.sourceware.org/libc-announce/[email protected]/T/#u Third Party Advisory
- https://sourceware.org/bugzilla/show_bug.cgi?id=CVE-2026-5450 Exploit, Issue Tracking
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html cert-portal.siemens.com
- https://sourceware.org/bugzilla/show_bug.cgi?id=CVE-2026-5450 Exploit, Issue Tracking