CVE-2026-90803GNU Binutils ld elf64-x86-64.c elf_x86_64_relocate_section buffer overflow
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A security vulnerability has been detected in GNU Binutils 2.47. Affected by this vulnerability is the function elf_x86_64_relocate_section of the file bfd/elf64-x86-64.c of the component ld. Such manipulation of the argument roff leads to buffer overflow. An attack has to be approached locally. The exploit has been disclosed publicly and may be used. Upgrading to version 2.48 addresses this issue. The name of the patch is 471130b39c03623ec6d78ece377ff4da3f6bfe7b. It is recommended to upgrade the affected component.
- CVSS
- 5.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
- Weakness (CWE)
- CWE-120, CWE-119
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulDB
- NVD analysis
- Analyzed
- Record last updated
- Sep 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
GNU Binutils gnu:binutils | 2.47; 2.48 not affected | CNA record |
gnu binutils gnu:binutils | 2.47 | NVD |
References
- https://vuldb.com/vuln/403305vdb-entry, technical-description, permissions-required, third-party-advisory
- https://vuldb.com/vuln/403305/ctisignature, permissions-required, third-party-advisory, vdb-entry
- https://vuldb.com/cve/CVE-2026-90803third-party-advisory, permissions-required, vdb-entry
- https://vuldb.com/submit/920280third-party-advisory, permissions-required, vdb-entry
- https://sourceware.org/bugzilla/show_bug.cgi?id=34444issue-tracking, exploit, third-party-advisory
- https://github.com/r1ck9-2q/cve_summit/blob/main/Heap%20OOB%20readwrite%20and%20SEGV%20in%20%60elf_x86_64_relocate_section%60%20(bfdelf64-x86-64.c4530%20%204835)%20via%20malformed%20relocation.mdexploit, mitigation, third-party-advisory
- https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=471130b39c03623ec6d78ece377ff4da3f6bfe7bpatch
- https://www.gnu.org/broken-link, product
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.