CVE-2025-1492 Uncontrolled Recursion in Wireshark

High 7.8 Published Updated

Uncontrolled recursion in Wireshark allows attackers to cause a denial of service via crafted packets or capture files.

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-2025-1492?

CVE-2025-1492 is a high-severity denial of service vulnerability in Wireshark Wireshark, published on 20 Feb 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

Bundle Protocol and CBOR dissector crashes in Wireshark 4.4.0 to 4.4.3 and 4.2.0 to 4.2.10 allows denial of service via packet injection or crafted capture file

Weakness: CWE-674

Which versions are affected by CVE-2025-1492?

It affects 1 product.

Linux distribution packages (14)
wireshark AlmaLinux:10All versions1:4.4.2-3.el10_0
wireshark-cli AlmaLinux:10All versions1:4.4.2-3.el10_0
wireshark-devel AlmaLinux:10All versions1:4.4.2-3.el10_0
wireshark Red Hat:enterprise_linux:10.0All versions1:4.4.2-3.el10_0
wireshark-cli Red Hat:enterprise_linux:10.0All versions1:4.4.2-3.el10_0
wireshark-cli-debuginfo Red Hat:enterprise_linux:10.0All versions1:4.4.2-3.el10_0
wireshark-debuginfo Red Hat:enterprise_linux:10.0All versions1:4.4.2-3.el10_0
wireshark-debugsource Red Hat:enterprise_linux:10.0All versions1:4.4.2-3.el10_0
wireshark-devel Red Hat:enterprise_linux:10.0All versions1:4.4.2-3.el10_0
wireshark Rocky Linux:10All versions1:4.4.2-3.el10_0
wireshark SUSE:Linux Enterprise Module for Basesystem 15 SP6All versions4.2.11-150600.18.20.1
wireshark SUSE:Linux Enterprise Module for Desktop Applications 15 SP6All versions4.2.11-150600.18.20.1
wireshark openSUSE:Leap 15.6All versions4.2.11-150600.18.20.1
wireshark openSUSE:TumbleweedAll versions4.4.4-2.1

Products include Wireshark Wireshark.

How do I fix CVE-2025-1492?

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-2025-1492 being exploited?

There is no known exploitation of CVE-2025-1492 in the wild and no public exploit code.

All Wireshark Wireshark vulnerabilities

Sources

Also known as ALSA-2025:9121, DEBIAN-CVE-2025-1492, GHSA-hrqm-vf6v-j4gp, RHSA-2025:9121, RLSA-2025:9121, SUSE-SU-2025:0754-1 and 2 more.

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