CVE-2026-90801

Summary

A security flaw has been discovered in GNU Binutils 2.47. This impacts the function cache_bwrite of the file bfd/cache.c of the component ld. The manipulation of the argument nbytes results in buffer overflow. The attack requires a local approach. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through a bug report but has not responded yet.

Affected Software

Weaknesses

• CWE-120: Buffer Overflow
• CWE-119: Memory Corruption

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: no
  • Technical Impact: partial

References

• https://vuldb.com/vuln/403303
• https://vuldb.com/vuln/403303/cti
• https://vuldb.com/cve/CVE-2026-90801
• https://vuldb.com/submit/920276
• https://sourceware.org/bugzilla/show_bug.cgi?id=34442
• https://github.com/r1ck9-2q/cve_summit/blob/main/Heap-buffer-overflow%20in%20%60cache_bwrite%60%20(bfdcache.c436)%20via%20malformed%20ELF%20with%20%60–gc-sections%20-w%60.md
• https://www.gnu.org/

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