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TI-2026-61992 Aliases CVE-2026-91781GHSA-x33g-4rqc-v4wq

GNU Binutils ELF Section elf64-x86-64.c elf_x86_64_common_section_index null pointer dereference

Priority MEDIUM 55CWE-404Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Low
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-404.

Summary

A security vulnerability has been detected in GNU Binutils 2.47. Affected is the function elf_x86_64_common_section_index of the file bfd/elf64-x86-64.c of the component ELF Section Handler. The manipulation leads to null pointer dereference. The attack needs to be performed locally. The exploit has been disclosed publicly and may be used. Upgrading to version 2.48 is able to address this issue. The identifier of the patch is 7322e9bc30cb282575a701c307851fd3d66fee68. It is suggested to upgrade the affected component.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00175 7th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD and the CNA
Fix Fixed Binutils (GNU): 2.48Red Hat: 1 advisory

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

VendorProductAffected versionsFixed inStatusSource
GNUBinutils2.472.48Patch availableCNA
  • Binutils VendorGNU Affected 2.47 Fixed in 2.48 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:gnu:binutils:2.47:*:*:*:*:*:*:*2.47VulnerableGNU
  • cpe:2.3:a:gnu:binutils:2.47:*:*:*:*:*:*:* Versions 2.47 Vulnerable ·GNU

Remediation

  • Fix · CNA Binutils (GNU) Fixed in 2.48

Red Hat 1 advisory

  • RHSA-2026:67961 Released 2026-09-16 · Red Hat rating Moderate
    Red Hat Hardened Images RPMs Security Update
    • Red Hat Hardened Images binutils-2.46.1-1.2.hum1@aarch64, binutils-2.46.1-1.2.hum1@src, binutils-2.46.1-1.2.hum1@x86_64 +6

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Hardened ImagesFixed RHSA-2026:67961

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-91781
  2. 2026-10-03 Alias added: GHSA-x33g-4rqc-v4wq
  3. 2026-10-20 Fix available: RHSA-2026:67961 · Red Hat
  4. 2026-10-20 Fix available: Red Hat Hardened Images · Red Hat
  5. 2026-10-20 CVSS score added · Red Hat

References

Exploit 2

Patch 1

Other 1

  • 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
See all 287 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences