CVE-2026-90803— GNU Binutils ld elf64-x86-64.c elf_x86_64_relocate_section buffer overflow
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 中检测到一处安全漏洞。该漏洞影响了 组件中 文件中的 函数。对该函数的参数 的不当操作会导致缓冲区溢出。攻击需以本地方式发起。该漏洞的利用方法已公开披露，可能被利用。升级到版本 2.48 可修复此问题。补丁名称为 。建议升级受影响的组件。
Possible ATT&CK Techniques 1 AI
T1210.004
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I. Basic Information for CVE-2026-90803
Vulnerability Information
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Vulnerability Title
GNU Binutils ld elf64-x86-64.c elf_x86_64_relocate_section buffer overflow
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-90803
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Patches & Fixes for CVE-2026-90803 (1)
Proof of Concept for CVE-2026-90803 (1)
Vendor Pages for CVE-2026-90803 (1)
Other References for CVE-2026-90803 (1)
Same Patch Batch · GNU · 2026-09-14 · 5 CVEs total
| CVE-2026-90801 | 5.3 MEDIUM | GNU Binutils ld cache.c cache_bwrite buffer overflow |
| CVE-2026-90804 | 4.8 MEDIUM | GNU Binutils Eh Frame Section elf-eh-frame.c _bfd_elf_write_section_eh_frame buffer overfl |
| CVE-2026-90802 | 4.4 MEDIUM | GNU Binutils ld libbfd.c bfd_putl64 null pointer dereference |
| CVE-2026-90622 | 3.3 LOW | GNU libredwg Layer Encoding dwg.spec DWG_TABLE null pointer dereference |
IV. Related Vulnerabilities
Same product: Binutils
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CVE-2026-90804
GNU Binutils Eh Frame Section elf-eh-frame.c _bfd_elf_write_ -
CVE-2026-90802
GNU Binutils ld libbfd.c bfd_putl64 null pointer dereference -
CVE-2026-90801
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Same vendor: GNU
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CVE-2026-90804
GNU Binutils Eh Frame Section elf-eh-frame.c _bfd_elf_write_ -
CVE-2026-90802
GNU Binutils ld libbfd.c bfd_putl64 null pointer dereference -
CVE-2026-90801
GNU Binutils ld cache.c cache_bwrite buffer overflow -
CVE-2026-90622
GNU libredwg Layer Encoding dwg.spec DWG_TABLE null pointer -
CVE-2026-16599
Denial of Service in GNU wget
Same weakness: CWE-120
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CVE-2026-55209
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CVE-2026-90804
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V. Comments for CVE-2026-90803
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