CVE-2026-5450
Last modified
CVE-2026-5450 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 0.45% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Gnu | Glibc | >= 2.7, <= 2.43 |
References
- https://sourceware.org/bugzilla/show_bug.cgi?id=CVE-2026-5450Exploit, Issue Tracking
- https://sourceware.org/bugzilla/show_bug.cgi?id=CVE-2026-5450Exploit, Issue Tracking
Timeline
- Published
- Last Modified
- Status
- Modified
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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