CVE-2025-5916 Libarchive: integer overflow while reading warc files at archive_read_support_format_warc.c
An integer overflow in Libarchive allows attackers to cause denial of service or memory corruption via malicious WARC files.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2025-5916?
CVE-2025-5916 is a low-severity vulnerability in Libarchive Libarchive, published on 9 Jun 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
A vulnerability has been identified in the libarchive library. This flaw involves an integer overflow that can be triggered when processing a Web Archive (WARC) file that claims to have more than INT64_MAX - 4 content bytes. An attacker could craft a malicious WARC archive to induce this overflow, potentially leading to unpredictable program behavior, memory corruption, or a denial-of-service condition within applications that process such archives using libarchive. This bug affects libarchive versions prior to 3.8.0.
Weakness: CWE-190
Which versions are affected by CVE-2025-5916?
It affects 3 products.
Linux distribution packages (1)
rpi-imager openSUSE:Tumbleweed | All versions | 1.9.5-1.1 |
Products include Libarchive Libarchive, Redhat Enterprise Linux, Redhat Openshift Container Platform.
How do I fix CVE-2025-5916?
Upgrade to a fixed version.
Is CVE-2025-5916 being exploited?
There is no known exploitation of CVE-2025-5916 in the wild and no public exploit code.
Other vulnerabilities in Libarchive Libarchive
Sources
Also known as AZL-63759, AZL-63774, AZL-63824, AZL-63863, BELL-CVE-2025-5916, DEBIAN-CVE-2025-5916 and 6 more.