CVE-2025-64031

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.16% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 5.1% of scored records. A rank, not a probability.

NVD base score

2.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Awaiting Analysis. NVD last modified this record on 2026-10-14.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-09-14 00:00Z1 MO AGO

Last updated

2026-09-16 14:22Z1 MO AGO

Reserved

2025-10-27

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Low (CVSS 2.5)

CNA CVSS vector

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

Weaknesses

• CWE-122Heap-based Buffer OverflowVariant
• CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')Base

Data version

5.2

Document digest

1dac59d36d582ce1e4651f80703c6c0eb5ce45635e93d74029a104780962a42d

• github.comhttps://github.com/libarchive/libarchive/pull/2734
• github.comhttps://github.com/libarchive/libarchive/pull/2734/commits
• github.comhttps://github.com/libarchive/libarchive/pull/2734/files
• github.comhttps://github.com/libarchive/libarchive/blob/master/libarchive/archive_write_add_filter_gzip.c
• gist.github.comhttps://gist.github.com/ttuurrnn/1365a4a9b1c3d5826a3a9bbe111f26b8