CVE-2026-4224

When an Expat parser with a registered ElementDeclHandler parses an inline document type definition containing a deeply nested content model a C stack overflow occurs...

EUVD-2026-12349

libexpat before 2.7.5 allows an infinite loop while parsing DTD content...

CVE-2026-32778

libexpat before 2.7.5 allows a NULL pointer dereference in the function setContext on retry after an earlier ouf-of-memory condition...

ALPINE-CVE-2026-32777

libexpat before 2.7.5 allows an infinite loop while parsing DTD content...

UBUNTU-CVE-2026-32777

libexpat before 2.7.5 allows an infinite loop while parsing DTD content...

UBUNTU-CVE-2026-32776

libexpat before 2.7.5 allows a NULL pointer dereference with empty external parameter entity content...

CVE-2026-32778

libexpat before 2.7.5 allows a NULL pointer dereference in the function setContext on retry after an earlier ouf-of-memory condition...

CVE-2026-32778

libexpat before 2.7.5 allows a NULL pointer dereference in the function setContext on retry after an earlier ouf-of-memory condition...

CVE-2026-32777

libexpat before 2.7.5 allows an infinite loop while parsing DTD content...

Huawei EulerOS: Security Advisory for expat (EulerOS-SA-2026-1480)

The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2026 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Huawei EulerOS: Security Advisory for expat (EulerOS-SA-2026-1423)

The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2026 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Linux Distros Unpatched Vulnerability : CVE-2026-4224

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - When an Expat parser with a registered ElementDeclHandler parses an inline document type definition containing a deeply nested content model a C stack overflow...

Unity Linux 20.1070e Security Update: expat (UTSA-2026-006164)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-006164 advisory. In libexpat before 2.7.4, the doContent function does not properly determine the buffer size bufSize because there is no integer overflow check for tag buffer...

Unity Linux 20.1070e Security Update: expat (UTSA-2026-006167)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-006167 advisory. In libexpat before 2.7.4, XMLExternalEntityParserCreate does not copy unknown encoding handler user data. Tenable has extracted the preceding description block...

ROS-20260311-73-0015

Vulnerability in expat related to null pointer dereferencing. Exploitation of the vulnerability could allow an attacker to cause a denial of service...

ROS-20260311-73-0014

Vulnerability in expat related to integer overflow. Exploitation of the vulnerability could allow an attacker to cause a denial of service...

Hitachi Energy RTU500 Product Allocation of Resources Without Limits or Throttling (CVE-2025-59375)

libexpat in Expat before 2.7.2 allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing. Product is only affected if IEC61850 functionality is configured. This plugin only works with Tenable.ot. Please visit...

ROS-20260310-73-0005

Vulnerability in expat related to algorithmic complexity. Exploitation of the vulnerability could allow an attacker acting remotely to cause a denial of service...

CVE-2026-25210 affecting package expat for versions less than 2.6.4-4

CVE-2026-25210 affecting package expat for versions less than 2.6.4-4. A patched version of the package is available...

openSUSE Security Advisory (SUSE-SU-2026:0826-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2026 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...