CVE-2025-64031

LOW
2.5
CVSS Score
Published: September 14, 2026 at 12:00 AM UTC
Updated: October 14, 2026 at 07:10 PM UTC
1 product affected across 1 vendorLibarchive

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Severity
LOW2.5
Exploit prediction
EPSS 0.2%
SSVC
PoC

Description

libarchive 3.8.x before 3.8.2 has a strcpy heap-based buffer overflow in the gzip writer via the original-filename field to archive_compressor_gzip_open in archive_write_add_filter_gzip.c, aka GHSA-92wx-p669-8gr9. This relates to bsdtar. Exploitation envisions a marginally plausible scenario in which original-filename is obtained from an untrusted party. (original-filename is not derived from the input data.)

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

3.8.0 ≤ v < 3.8.23.8.0
Affected range stops below 3.8.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

2.5LOWmitre
Attack Vector
LOCAL
Complexity
HIGH
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
LOW
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-122

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