VulnerabilityAwaiting Analysis

CVE-2026-76781

A local user or an attacker providing a specially crafted XML catalog can trigger a NULL pointer dereference during XML catalog parsing.

MEDIUM 5.5EPSS 0.17%

Does this matter?

Lower severity and a low EPSS score (0.17%). Track it; it rarely justifies an emergency change on its own.

Description

A flaw was found in libxml2. A local user or an attacker providing a specially crafted XML catalog can trigger a NULL pointer dereference during XML catalog parsing. This occurs when a `nextCatalog` element lacks its mandatory `catalog` attribute, leading to the application crashing and causing a Denial of Service (DoS).

CVSS 3.1: 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS: 0.17% probability · 6th percentile
Public exploits: None in Exploit-DB
CISA KEV: Not listed
Weakness: CWE-476
Source: secalert@redhat.com

EPSS trend

EPSS 0.2% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.