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CVE-2026-91780— GNU Binutils elflink.c elf_link_add_object_symbols 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.

GNU Binutils是美国GNU基金会开源的一套二进制工具集合。 GNU Binutils 2.47版本存在安全漏洞，该漏洞源于文件bfd/elflink.c中函数elf_link_add_object_symbols存在操作不当，可能导致本地攻击者触发空指针取消引用。

CVSS 3.3 · Low EPSS 0.17% · P6

Affected Version Matrix 1

VendorProduct Version RangeStatus
GNU Binutils 2.47 affected
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I. Basic Information for CVE-2026-91780

Vulnerability Information
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Vulnerability Title
GNU Binutils elflink.c elf_link_add_object_symbols null pointer dereference
Source: CVE Program / CVE List V5
Vulnerability Description
A weakness has been identified in GNU Binutils 2.47. This impacts the function elf_link_add_object_symbols of the file bfd/elflink.c. Executing a manipulation can lead to null pointer dereference. The attack needs to be launched locally. The exploit has been made available to the public and could 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
Vulnerability Title
GNU Binutils 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GNU Binutils是美国GNU基金会开源的一套二进制工具集合。 GNU Binutils 2.47版本存在安全漏洞，该漏洞源于文件bfd/elflink.c中函数elf_link_add_object_symbols存在操作不当，可能导致本地攻击者触发空指针取消引用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

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

II. Public POCs for CVE-2026-91780

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III. Intelligence Information for CVE-2026-91780

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Proof of Concept for CVE-2026-91780 (1)

Vendor Pages for CVE-2026-91780 (1)

Other References for CVE-2026-91780 (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-2026-91779 3.3 LOW GNU Binutils Eh Frame elf-eh-frame.c _bfd_elf_eh_frame_section_offset null pointer derefer
CVE-2026-91781 3.3 LOW GNU Binutils ELF Section elf64-x86-64.c elf_x86_64_common_section_index null pointer deref
CVE-2026-91782 3.3 LOW GNU Binutils Dynamic Relocation Allocation elfxx-x86.c elf_x86_allocate_dynrelocs null poi

IV. Related Vulnerabilities

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