CVE-2026-90801
GNU Binutils ld cache.c cache_bwrite buffer overflow
- State
- Published
- Severity
- 4.8 Medium
- Published
- Sep 14, 2026
- Updated
- Sep 14, 2026
- Reserved
- Sep 13, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 4.8 Medium | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 5.3 Medium | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 3.0 | 5.3 Medium | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 2.0 | 4.3 Medium | AV:L/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
BinutilsGNU |
|
References
- VDB-403303 | GNU Binutils ld cache.c cache_bwrite buffer overflowvdb-entrytechnical-description
- VDB-403303 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- CVE-2026-90801 | CVE Analysis and Reportthird-party-advisory
- Submit #920276 | GNU Binutils 2.47 (version date 20260726) Heap-based Buffer Overflowthird-party-advisory
- https://sourceware.org/bugzilla/show_bug.cgi?id=34442issue-tracking
- 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.mdexploit
- https://www.gnu.org/broken-linkproduct
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