CVE-2025-29476

Name: CVE-2025-29476
Creator: NVD / NIST
Published: 2025-04-04T18:15:48.263+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.21%

Last modified Jun 17, 2026

CVE-2025-29476 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. Buffer Overflow vulnerability in compress_chunk_fuzzer with oss-fuzz on commit 16450518afddcb3139de627157208e49bfef6987 in c-blosc2 v.2.17.0 and before.. EPSS estimates a 0.21% chance of exploitation in the next 30 days.

Description

Buffer Overflow vulnerability in compress_chunk_fuzzer with oss-fuzz on commit 16450518afddcb3139de627157208e49bfef6987 in c-blosc2 v.2.17.0 and before.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L

EPSS Probability

0.21%

11.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-120

References

Timeline

Published: Apr 4, 2025
Last Modified: Jun 17, 2026
Status: Deferred

Frequently Asked Questions

What is CVE-2025-29476?

Buffer Overflow vulnerability in compress_chunk_fuzzer with oss-fuzz on commit 16450518afddcb3139de627157208e49bfef6987 in c-blosc2 v.2.17.0 and before.

How severe is CVE-2025-29476?

CVE-2025-29476 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.21% probability of exploitation in the next 30 days.

How do I fix CVE-2025-29476?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-29476?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST