What is CVE-2025-64329?

CVE-2025-64329 is a medium-severity vulnerability in Containerd, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 5.5/10. Published 2025-11-07.

How severe is CVE-2025-64329?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Containerd

CVE-2025-64329

containerd is an open-source container runtime. Versions 1.7.28 and below, 2.0.0-beta.0 through 2.0.6, 2.1.0-beta.0 through 2.1.4, and 2.2.0-beta.0 through 2.2.0-rc.1 contain a bug in the CRI Attach implementation where a user can exhaust…

EPSS: 0.002 (5.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Containerd — versions < 1.7.29, < 2.0.7, >= 2.1.0-beta.0, < 2.1.5
Linuxfoundation Containerd — versions 2.2.0

Weakness classification (CWE)

CWE-401 — Missing Release of Memory after Effective Lifetime

References

security-advisories@github.com (x_refsource_CONFIRM, Patch, Vendor Advisory)
security-advisories@github.com (Patch, x_refsource_MISC)

Frequently asked questions

What is CVE-2025-64329?: CVE-2025-64329 is a medium-severity vulnerability in Containerd, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 5.5/10. Published 2025-11-07.
How severe is CVE-2025-64329?: Medium severity. CVSS v3 base score is 5.5 out of 10.