CVE-2025-11082Public exploit

Code execution via unterminated EH-frame augmentation

Published Sep 27, 2025 · Updated Sep 27, 2025

Heap-based buffer overflow in GNU Binutils 2.45 Linker allows local users to crash the linker or execute code via a crafted ELF file. _bfd_elf_parse_eh_frame in bfd/elf-eh-frame.c calls strlen on augmentation data without proving a NUL byte occurs within the mapped .eh_frame section. A user must be able to run ld against the malicious input; the overflow occurs during --gc-sections processing and can corrupt the linker process.

CVSS severity7.8
High
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap-based buffer overflow in GNU Binutils 2.45 Linker allows local users to crash the linker or execute code via a crafted ELF file. _bfd_elf_parse_eh_frame in bfd/elf-eh-frame.c calls strlen on augmentation data without proving a NUL byte occurs within the mapped .eh_frame section. A user must be able to run ld against the malicious input; the overflow occurs during --gc-sections processing and can corrupt the linker process.

The record

CVE
CVE-2025-11082
Published
Sep 27, 2025
Updated
Sep 27, 2025
Vendor
The GnuPG Project
Product
GNU Binutils
Classifications
CWE-119, CWE-122, T1203
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 27, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 27, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.45

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The GnuPG Project · GNU Binutilsversion=2.45

Published CVSS scores

5.3VulDBCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.3VulDBAV:L/AC:L/Au:S/C:P/I:P/A:P
1.9VulDBCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-122Heap-based Buffer Overflow
T1203Exploitation for Client Execution

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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