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🐍
🐍 PyPI
Not in CISA KEV
HIGH severity

LIEF vulnerable to heap based buffer overflow via print_binary functionGHSA-42vg-2q93-fj6j

HIGHFix: lief-project/LIEF@0033b63

GHSA-42vg-2q93-fj6j is a high-severity (CVSS 7.8) Out-of-bounds Write vulnerability in lief. 1 public exploit or proof-of-concept reference is indexed, so weaponization risk is real. The records list no fixed version yet; check the vendor advisory below and apply the mitigations in the meantime.

Also known asCVE-2022-38495PYSEC-2022-276
Published
Updated
Affected
1 pkg
Patched
See advisory
Exploits
1 known
Exploitation data as of Nov 11, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
0.3%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs28th percentile — riskier than 28% of all scored CVEsHighest risk
0.00%0.28%0.56%0.84%0.1%0.3%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
🐍lief

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.

Description

LIEF commit 365a16a was discovered to contain a heap-buffer overflow via the function print_binary at /c/macho_reader.c. Commit 0033b6312fd311b2e45e379c04a83d77c1e58578 contains a patch.

Affected Packages

1 total
EcosystemPackageVulnerable rangeFix
🐍PyPIliefall versionsNo fix

Affected Products

1 product · 1 configurations
Application
lieflief-project
≤ 0.12.1
range
Exploits & PoCs
1

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

LIEF commit 365a16a was discovered to contain a heap-buffer overflow via…

github.comNVDSep 2022

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for lief, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Remediation status

    The records we use list no patched version of lief for GHSA-42vg-2q93-fj6j. Check the maintainer's advisory, and where your build allows, override or pin the dependency away from the vulnerable range.

  3. Mitigate without a patch

    Constrain what reaches the vulnerable code: limit the size and shape of untrusted input, isolate the affected component in a sandboxed or least-privileged process, and enable the platform's memory-safety mitigations (ASLR, stack protector, hardened allocator) so an out-of-bounds access is more likely to fail closed than to be exploitable.

Frequently Asked Questions

LIEF commit 365a16a was discovered to contain a heap-buffer overflow via the function `print_binary` at `/c/macho_reader.c`. Commit 0033b6312fd311b2e45e379c04a83d77c1e58578 contains a patch.
O3 Security · Impact-Aware SCA

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LIEF vulnerable to heap based buffer overflow via…