oqs-provider is a provider for the OpenSSL 3 cryptography library that adds support for post-quantum cryptography in TLS, X.509, and S/MIME using post-quantum algorithms from liboqs. Flaws have been identified in the way oqs-provider handles lengths decoded with DECODE_UINT32 at the start of serialized hybrid (traditional + post-quantum) keys and signatures. Unchecked length values are later used for memory reads and writes; malformed input can lead to crashes or information leakage. Handling of plain/non-hybrid PQ key operation is not affected. This issue has been patched in in v0.6.1. All users are advised to upgrade. There are no workarounds for this issue.
CVE-2024-37305
This high-severity CVE scores 8.2 under NVD CVSS v3. EPSS exploit probability: 0.1%, top 67% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.2
- EG Score
- 8.2(medium)
- EPSS
- 35.9%
- KEV
- Not listed
Published
June 17, 2024
Last Modified
April 15, 2026
References (4)
- security-advisories@githubhttps://github.com/open-quantum-safe/oqs-provider/pull/416
- security-advisories@githubhttps://github.com/open-quantum-safe/oqs-provider/security/advisories/GHSA-pqvr-5cr8-v6fx
- af854a3a-2127-422b-91ae-364da2661108https://github.com/open-quantum-safe/oqs-provider/pull/416
- af854a3a-2127-422b-91ae-364da2661108https://github.com/open-quantum-safe/oqs-provider/security/advisories/GHSA-pqvr-5cr8-v6fx
Weakness Classification(5)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 11× in last 7d / 46× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 101 total refreshes for this CVE.
- 2026-07-11 08:26 UTCEPSS rescore
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Related CVEs(same CWE)
Same CWE
10 shownCWE-120 · CWE-190
- CVE-2010-10016EG 10.0CRITICAL
- CVE-2009-0948EG 9.8CRITICAL
- CVE-2009-0947EG 9.8CRITICAL
- CVE-2006-3100EG 9.8CRITICAL
- CVE-2009-5041EG 9.8CRITICAL
- CVE-2005-1141EG 9.8CRITICAL
- CVE-2005-0102EG 9.8CRITICAL
- CVE-2002-0391EG 9.8EPSS 99%CRITICAL
- CVE-2002-0639EG 9.8EPSS 97%CRITICAL
- CVE-2007-5659NVD 7.8EG 9.0 KEVEPSS 100%HIGH
Frequently asked(5)
What is CVE-2024-37305?
When was CVE-2024-37305 disclosed?
Is CVE-2024-37305 actively exploited?
What is the CVSS score of CVE-2024-37305?
How do I remediate CVE-2024-37305?
Dependency Blast Radius
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