GNU Binutils ld elf64-x86-64.c elf_x86_64_relocate_section buffer overflow
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- Partial Red Hat: 1 fixed, 7 without a fix
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Binutils (GNU) Fixed in 2.48
Red Hat 1 advisory
- RHSA-2026:47171 Released 2026-07-28 · Red Hat rating ModerateRed Hat Hardened Images RPMs Security Update
- Red Hat Hardened Images binutils-2.46.1-1.1.hum1@aarch64, binutils-2.46.1-1.1.hum1@src, binutils-2.46.1-1.1.hum1@x86_64 +6
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | — |
| Red Hat Enterprise Linux 6 | Affected | — |
| Red Hat Enterprise Linux 7 | Affected | — |
| Red Hat Enterprise Linux 8 | Affected | — |
| Red Hat Enterprise Linux 9 | Affected | — |
| Red Hat OpenShift Container Platform 4 | Affected | — |
| Red Hat OpenShift Container Platform 5 | Affected | — |
| Red Hat Hardened Images | Fixed | RHSA-2026:47171 |
Timeline
- 2026-10-02 Threatist record created from CVE-2026-90803
- 2026-10-03 Alias added: GHSA-fw55-q7rw-84f9
- 2026-10-30 Affected versions changed · Red Hat
References
Exploit 2
Patch 1
Other 1
More GNU Binutils vulnerabilities
- TI-2020-13695 An issue was discovered in binutils libbfd.c 2.36 relating to the auxiliary symbol data… CVSS 3.1HIGH 8.8
- TI-2025-42907 GNU Binutils thru 2.46 readelf contains a double free vulnerability when processing a… CVSS 3.1HIGH 7.5
- TI-2025-41071 An issue was discovered in function d_print_comp_inner in file cp-demangle.c in BinUtils… CVSS 3.1HIGH 7.5
- TI-2025-41069 An issue was discovered in function d_discriminator in file cp-demangle.c in BinUtils… CVSS 3.1HIGH 7.5
- TI-2025-41068 A buffer overflow vulnerability in function gnu_special in file cplus-dem.c in BinUtils… CVSS 3.1HIGH 7.5
- TI-2021-21105 Heap-based Buffer Overflow in function bfd_getl32 in Binutils objdump 3.37. CVSS 3.1HIGH 7.5
Sources
- CVE-2026-90803 · CVE Program
- CVE-2026-90803 · NVD
- FIRST EPSS
- GHSA-fw55-q7rw-84f9 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-90803 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences