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🐍 PyPI
Not in CISA KEV
HIGH severity

CVE-2018-14521 — aubio

HIGHFix: aubio/aubio@a81b12a

CVE-2018-14521 is a high-severity (CVSS 8.8) Buffer Overflow vulnerability in aubio. 1 public exploit or proof-of-concept reference is indexed, so weaponization risk is real. A fix is available for aubio — see the affected versions and patch details below.

Aubio is vulnerable to denial of service via aubio_source_avcodec_readframe function

Also known asGHSA-rcv6-7hmv-fj7hPYSEC-2018-61
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
1 known
Exploitation data as of Nov 8, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
1.5%probability of exploitation in next 30 days
Lower Risk-0.00%
Lower risk than most CVEs74th percentile — riskier than 74% of all scored CVEsHighest risk
0.00%0.67%1.34%2.01%0.4%1.5%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
🐍aubio

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

An issue was discovered in aubio 0.4.6. A SEGV signal can occur in aubio_source_avcodec_readframe in io/source_avcodec.c, as demonstrated by aubiomfcc.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐍PyPIaubioall versions0.4.7pip install --upgrade 'aubio==0.4.7'

Affected Products

1 product · 1 configurations
Application
aubioaubio
1 version
0.4.6
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.

An issue was discovered in aubio 0.4.6. A SEGV signal can occur in aubio…

github.comNVDSep 2018

Detection & mitigation playbook

Open-source dependency

  1. Detect

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

  2. Fix

    Update aubio to 0.4.7 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2018-14521 is resolved across your whole dependency graph.

  3. Workarounds

    Stop feeding it untrusted input: reject or quarantine files and payloads from unverified sources until you can upgrade, restrict accepted formats to the ones you actually need, and run the parsing or decoding step in a least-privileged sandbox or short-lived worker so a crash or corrupted read cannot reach the rest of the process.

Frequently Asked Questions

An issue was discovered in aubio 0.4.6. A SEGV signal can occur in aubio_source_avcodec_readframe in io/source_avcodec.c, as demonstrated by aubiomfcc.
O3 Security · Impact-Aware SCA

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Find it across PyPI, including transitive dependencies.

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CVE-2018-14521: aubio — Fixed in 0.4.7