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CVE-2026-91779— GNU Binutils Eh Frame elf-eh-frame.c _bfd_elf_eh_frame_section_offset null pointer dereference

Quick assessment

Affected
GNU Binutils
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 GNU Binutils 2.47 中发现了一个安全漏洞。该漏洞位于组件 Eh Frame Handler 的文件 中的函数 。当对该函数进行特定操作时，会导致空指针解引用（null pointer dereference）。攻击必须从本地发起。利用该漏洞的攻击方法已公开，可能被用于实际攻击。项目方较早地通过漏洞报告得知了该问题，但尚未作出回应。

CVSS 3.3 · Low

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-91779

Vulnerability Information
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Vulnerability Title
GNU Binutils Eh Frame elf-eh-frame.c _bfd_elf_eh_frame_section_offset null pointer dereference
Source: CVE Program / CVE List V5
Vulnerability Description
A security flaw has been discovered in GNU Binutils 2.47. This affects the function _bfd_elf_eh_frame_section_offset of the file bfd/elf-eh-frame.c of the component Eh Frame Handler. Performing a manipulation results in null pointer dereference. The attack must be initiated from a local position. 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
GNU Binutils 2.47 cpe:2.3:a:gnu:binutils:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-91779

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III. Intelligence Information for CVE-2026-91779

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Vendor Advisories for CVE-2026-91779 (1)

Vendor Pages for CVE-2026-91779 (1)

Other References for CVE-2026-91779 (1)

Same Patch Batch · GNU · 2026-09-15 · 5 CVEs total

CVE-2026-91752 7.5 HIGH GNU libextractor before 1.15 Stack Overflow via OLE2
CVE-2026-91782 3.3 LOW GNU Binutils Dynamic Relocation Allocation elfxx-x86.c elf_x86_allocate_dynrelocs null poi
CVE-2026-91781 3.3 LOW GNU Binutils ELF Section elf64-x86-64.c elf_x86_64_common_section_index null pointer deref
CVE-2026-91780 3.3 LOW GNU Binutils elflink.c elf_link_add_object_symbols null pointer dereference

IV. Related Vulnerabilities

Same product: Binutils
Same vendor: GNU
Same weakness: CWE-476

V. Comments for CVE-2026-91779

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