Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-91781— GNU Binutils ELF Section elf64-x86-64.c elf_x86_64_common_section_index 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bfd/elf64-x86-64.c文件中的elf_x86_64_common_section_index函数处理不当，可能导致本地攻击者触发空指针取消引用。

CVSS 3.3 · Low EPSS 0.18% · P7

Affected Version Matrix 2

VendorProduct Version RangeStatus
GNU Binutils 2.47 affected
2.48 unaffected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-91781

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
GNU Binutils ELF Section elf64-x86-64.c elf_x86_64_common_section_index null pointer dereference
Source: CVE Program / CVE List V5
Vulnerability Description
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.
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bfd/elf64-x86-64.c文件中的elf_x86_64_common_section_index函数处理不当，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-2026-91781

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-91781

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-91781 (2)

Proof of Concept for CVE-2026-91781 (1)

Vendor Pages for CVE-2026-91781 (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-2026-91780 3.3 LOW GNU Binutils elflink.c elf_link_add_object_symbols null pointer dereference
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