# CVE-2021-41500: cvxopt: Incomplete string comparison vulnerability exits in cvxopt.org cvxop <= 1.2.6 in APIs (cvxopt.cholmod.diag, cvxopt.ch...

CVE-2021-41500 is fixed in cvxopt on 1 platform, first by DEBIAN-CVE-2021-41500, released December 17, 2021. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2021-41500
- Priority: High
- CVSS: 7.5 (high)
- EPSS: 0.0119
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 17, 2021

## Description

Incomplete string comparison vulnerability exits in cvxopt.org cvxop <= 1.2.6 in APIs (cvxopt.cholmod.diag, cvxopt.cholmod.getfactor, cvxopt.cholmod.solve, cvxopt.cholmod.spsolve), which allows attackers to conduct Denial of Service attacks by construct fake Capsule objects.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | cvxopt Debian 12.15 (bookworm) | 1.2.7+dfsg-1 | [DEBIAN-CVE-2021-41500](https://patchblox.com/security/data/fix/linux/debian-cve-2021-41500.md) | Dec 17, 2021 |
| Linux | cvxopt Debian 13.5 (trixie) | 1.2.7+dfsg-1 | [DEBIAN-CVE-2021-41500](https://patchblox.com/security/data/fix/linux/debian-cve-2021-41500.md) | Dec 17, 2021 |
| Linux | cvxopt Debian 14 | 1.2.7+dfsg-1 | [DEBIAN-CVE-2021-41500](https://patchblox.com/security/data/fix/linux/debian-cve-2021-41500.md) | Dec 17, 2021 |

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Data as of 2026-11-09T07:25:28Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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