CVE-2025-60753 Denial of service in n/a
Crafted substitution rules in libarchive bsdtar cause unbounded memory allocation, leading to an Out-of-Memory crash and denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2025-60753?
CVE-2025-60753 is a medium-severity denial of service vulnerability in Libarchive Libarchive, published on 5 Nov 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
An issue was discovered in libarchive bsdtar before version 3.8.1 in function apply_substitution in file tar/subst.c when processing crafted -s substitution rules. This can cause unbounded memory allocation and lead to denial of service (Out-of-Memory crash).
Which versions are affected by CVE-2025-60753?
It affects 1 product.
Products include Libarchive Libarchive.
How do I fix CVE-2025-60753?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-60753 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-60753 exists.
Other vulnerabilities in Libarchive Libarchive
Sources
Also known as AZL-69866, AZL-69893, BELL-CVE-2025-60753, CLSA-2026-1778893359, CLSA-2026-1778894153, DEBIAN-CVE-2025-60753 and 11 more.