Heap-based Buffer Overflow Affecting glibc package, versions [2.7,]
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published24 Apr 2026
- disclosed20 Apr 2026
- creditUnknown
Introduced: 20 Apr 2026
CVE-2026-5450 (opens in a new tab)How to fix?
There is no fixed version for glibc.
Overview
Affected versions of this package are vulnerable to Heap-based Buffer Overflow in the scanf functions when using the %mc format specifier with an explicit width greater than 1024. An attacker can cause a one-byte heap buffer overflow by supplying crafted input to the affected function.