What’s Vulnerable › Vulnerabilities

CVE-2023-37186

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-12-25 · updated 2026-06-17
• Weakness: CWE-476

Description

C-blosc2 before 2.9.3 was discovered to contain a NULL pointer dereference in ndlz/ndlz8x8.c via a NULL pointer to memset.

Affected products

• c-blosc2: before 2.9.3 — fixed in 2.9.3

How to fix

Upgrade to a fixed version: c-blosc2 2.9.3. Check the vendor advisory for mitigations.

References

• https://github.com/Blosc/c-blosc2/commit/d55bfcd6804699e1435dc3e233fd76c8a5d3f9e3
• https://github.com/Blosc/c-blosc2/compare/v2.9.2...v2.9.3
• https://github.com/Blosc/c-blosc2/issues/522
• https://github.com/Blosc/c-blosc2/commit/d55bfcd6804699e1435dc3e233fd76c8a5d3f9e3
• https://github.com/Blosc/c-blosc2/compare/v2.9.2...v2.9.3
• https://github.com/Blosc/c-blosc2/issues/522

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