CVE-2026-5450

Summary

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 Software

VendorProductVersion RangeStatus
The GNU C Libraryglibc2.7 < *affected

Weaknesses

  • CWE-122: CWE-122 Heap-based buffer overflow

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: poc
    • Automatable: yes
    • Technical Impact: total

Additional References

References