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CRITICAL severity

CVE-2019-16880 — linea

CRITICAL

CVE-2019-16880 is a critical-severity (CVSS 9.8) CWE-415 vulnerability in linea. 1 public exploit reference exists, so weaponization risk is real. A fix is available for linea — see the affected versions and patch details below.

Double free in linea

Also known asRUSTSEC-2019-0021
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
1 known
Exploitation data as of Oct 8, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
1.7%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs76th percentile — riskier than 76% of all scored CVEsHighest risk
0.00%0.73%1.46%2.19%0.4%1.7%Apr 26Aug 26Oct 26

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

How urgent is this, really

CVE-2019-16880 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 385,738 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.

Real-World Exposure

1 pkg affected
🦀linea

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

Description

Affected versions of this crate did not properly implements the Matrix::zip_elements method, which causes an double free when the given trait implementation might panic. This allows an attacker to corrupt or take control of the memory.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🦀crates.iolineaall versions0.9.4cargo update -p linea --precise 0.9.4

Affected Products

1 product · 1 configurations
Application
linealinea_project
≤ 0.9.4
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.

An issue was discovered in the linea crate through 0.9.4 for Rust. There…

rustsec.orgNVDSep 2019

Detection & mitigation playbook

Open-source dependency

  1. Detect

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

  2. Fix

    Update linea to 0.9.4 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2019-16880 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

Affected versions of this crate did not properly implements the Matrix::zip_elements method, which causes an double free when the given trait implementation might panic. This allows an attacker to corrupt or take control of the memory.
O3 Security · Impact-Aware SCA

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CVE-2019-16880: linea — Fixed in 0.9.4