CVE-2025-1151Public exploitNetwork attack vector

Denial of service via unreleased linker allocation

Published Feb 10, 2025 · Updated Feb 12, 2025

Memory leak in GNU Binutils ld 2.43 allows context-dependent attackers to interrupt linking via crafted linker input. Public records identify xmemdup in xmemdup.c as the allocation locus but do not disclose the input field or call path that leaves copied memory unreleased. A user must make ld process the input; repeated unreleased allocations consume linker memory until that process crashes or hangs, while confidentiality and integrity remain unaffected.

CVSS severity2.3
Low
EPSS probability0.61%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory leak in GNU Binutils ld 2.43 allows context-dependent attackers to interrupt linking via crafted linker input. Public records identify xmemdup in xmemdup.c as the allocation locus but do not disclose the input field or call path that leaves copied memory unreleased. A user must make ld process the input; repeated unreleased allocations consume linker memory until that process crashes or hangs, while confidentiality and integrity remain unaffected.

The record

CVE
CVE-2025-1151
Published
Feb 10, 2025
Updated
Feb 12, 2025
Vendor
The GnuPG Project
Product
GNU Binutils
Classifications
CWE-404, CWE-401, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 10, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 12, 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=2.43

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The GnuPG Project · GNU Binutilsversion=2.43

Published CVSS scores

3.1VulDB CNACVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L
3.1VulDB CNACVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L
2.3VulDB CNACVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
2.6VulDB CNAAV:N/AC:H/Au:N/C:N/I:N/A: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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-404Improper Resource Shutdown or Release
CWE-401Missing Release of Memory after Effective Lifetime
T1499Endpoint Denial of Service

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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