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Libexpat CVE-2025-59375

HIGH
Allocation of Resources Without Limits or Throttling (CWE-770)
2025-09-15 cve@mitre.org
7.5
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SUSE
HIGH
qualitative
Red Hat
5.3 HIGH
qualitative

Primary rating from NVD.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

4
Patch released
Apr 06, 2026 - 20:30 nvd
Patch available
Analysis Generated
Mar 28, 2026 - 19:12 vuln.today
PoC Detected
Nov 04, 2025 - 22:16 vuln.today
Public exploit code
CVE Published
Sep 15, 2025 - 03:15 nvd
HIGH 7.5

DescriptionCVE.org

libexpat in Expat before 2.7.2 allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing.

AnalysisAI

libexpat in Expat before 2.7.2 allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Allocation of Resources Without Limits (CWE-770), which allows attackers to exhaust system resources through uncontrolled allocation. libexpat in Expat before 2.7.2 allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing. Affected products include: Libexpat Project Libexpat. Version information: before 2.7.2.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Set resource limits, implement rate limiting, validate input sizes.

CVE-2022-25315 CRITICAL POC
9.8 Feb 18

In Expat (aka libexpat) before 2.4.5, there is an integer overflow in storeRawNames. Rated critical severity (CVSS 9.8),

CVE-2017-9233 HIGH POC
7.5 Jul 25

XML External Entity vulnerability in libexpat 2.2.0 and earlier (Expat XML Parser Library) allows attackers to put the p

CVE-2026-45186 HIGH POC
7.5 May 10

Denial of service in libexpat before 2.8.1 lets remote attackers exhaust CPU by submitting moderately sized crafted XML

CVE-2022-43680 HIGH POC
7.5 Oct 24

In libexpat through 2.4.9, there is a use-after free caused by overeager destruction of a shared DTD in XML_ExternalEnti

CVE-2019-15903 HIGH POC
7.5 Sep 04

In libexpat before 2.2.8, crafted XML input could fool the parser into changing from DTD parsing to document parsing too

CVE-2013-0340 MEDIUM POC
6.8 Jan 21

expat before version 2.4.0 does not properly handle entities expansion unless an application developer uses the XML_SetE

CVE-2016-0718 CRITICAL
9.8 May 26

Expat allows context-dependent attackers to cause a denial of service (crash) or possibly execute arbitrary code via a m

CVE-2024-45492 CRITICAL
9.8 Aug 30

An issue was discovered in libexpat before 2.6.3. Rated critical severity (CVSS 9.8), this vulnerability is remotely exp

CVE-2024-45491 CRITICAL
9.8 Aug 30

An issue was discovered in libexpat before 2.6.3. Rated critical severity (CVSS 9.8), this vulnerability is remotely exp

CVE-2026-66046 HIGH
8.7 Aug 18

Denial of service in libexpat through 2.8.3 stems from quadratic CPU complexity in the storeAtts() XML attribute process

CVE-2026-76641 HIGH
8.7 Aug 20

Out-of-bounds read in libexpat through 2.8.3 allows remote unauthenticated attackers to crash any application that parse

CVE-2016-4472 HIGH
8.1 Jun 30

The overflow protection in Expat is removed by compilers with certain optimization settings, which allows remote attacke

Vendor StatusVendor

SUSE

Severity: High
Product Status
Container bci/kiwi:latest Container private-registry/harbor-portal:1.1.0-1.1 Container private-registry/harbor-trivy-adapter:1.1.0-1.1 Container suse/multi-linux-manager/5.1/x86_64/proxy-httpd:5.1.1.8.9.2 Container suse/multi-linux-manager/5.1/x86_64/proxy-salt-broker:5.1.1.9.7.2 Container suse/multi-linux-manager/5.1/x86_64/proxy-squid:5.1.2.8.13.1 Container suse/multi-linux-manager/5.1/x86_64/proxy-ssh:5.1.1.8.7.1 Container suse/multi-linux-manager/5.1/x86_64/proxy-tftpd:5.1.1.8.7.1 Container suse/multi-linux-manager/5.1/x86_64/server-hub-xmlrpc-api:5.1.1.8.7.1 Container suse/multi-linux-manager/5.1/x86_64/server-migration-14-16:5.1.1.8.7.1 Container suse/multi-linux-manager/5.1/x86_64/server-saline:5.1.2.9.13.1 Container suse/multi-linux-manager/5.1/x86_64/server:5.1.1.8.7.1 Image SLES15-SP7-Azure-3P Image SLES15-SP7-Azure-Basic Image SLES15-SP7-Azure-Standard Image SLES15-SP7-BYOS-Azure Image SLES15-SP7-BYOS-EC2 Image SLES15-SP7-BYOS-GCE Image SLES15-SP7-CHOST-BYOS-Aliyun Image SLES15-SP7-CHOST-BYOS-Azure Image SLES15-SP7-CHOST-BYOS-EC2 Image SLES15-SP7-CHOST-BYOS-GCE Image SLES15-SP7-CHOST-BYOS-GDC Image SLES15-SP7-CHOST-BYOS-SAP-CCloud Image SLES15-SP7-EC2 Image SLES15-SP7-EC2-ECS-HVM Image SLES15-SP7-GCE Image SLES15-SP7-GCE-3P Image SLES15-SP7-HPC-Azure Image SLES15-SP7-HPC-BYOS-Azure Image SLES15-SP7-HPC-BYOS-EC2 Image SLES15-SP7-HPC-BYOS-GCE Image SLES15-SP7-Hardened-BYOS-Azure Image SLES15-SP7-Hardened-BYOS-EC2 Image SLES15-SP7-Hardened-BYOS-GCE Image pr_15_7 Image proxy-httpd-image Image proxy-salt-broker-image Image proxy-squid-image Image proxy-ssh-image Image proxy-tftpd-image Image server-database-migration-image Image server-hub-xmlrpc-api-image Image server-image Image server-migration-14-16-image Image server-saline-image Affected
Container bci/spack:0.23.1-11.66 Container containers/lmcache-lmstack-router:0.1.6-2.11 Container containers/open-webui-mcpo:0.0.17-1.1 Container containers/open-webui-pipelines:0.20250819.030501-7.7 Container containers/open-webui:0.6.18-12.30 Container containers/pytorch:2.8.0-nvidia-3.6 Container containers/vllm-openai:0.9.1-3.40 Container private-registry/harbor-nginx:1.21.5-2.53 Container suse/manager/4.3/proxy-httpd:4.3.16.9.67.29 Container suse/manager/4.3/proxy-salt-broker:4.3.16.9.57.31 Container suse/manager/4.3/proxy-ssh:4.3.16.9.57.24 Container suse/manager/4.3/proxy-tftpd:4.3.16.9.57.24 Container suse/manager/5.0/x86_64/proxy-httpd:5.0.5.1.7.26.2 Container suse/manager/5.0/x86_64/proxy-salt-broker:5.0.5.1.7.28.2 Container suse/manager/5.0/x86_64/proxy-ssh:5.0.5.1.7.26.1 Container suse/manager/5.0/x86_64/proxy-tftpd:5.0.5.1.7.26.1 Container suse/manager/5.0/x86_64/server-hub-xmlrpc-api:5.0.5.1.6.26.1 Container suse/manager/5.0/x86_64/server-migration-14-16:5.0.5.1.7.26.2 Container suse/manager/5.0/x86_64/server:5.0.5.1.7.33.2 Container suse/mariadb:10.11.14-75.1 Container suse/sle-micro-rancher/5.3:latest Container suse/sle-micro-rancher/5.4:5.4.4.5.71 Container suse/sle-micro/5.3/toolbox:14.2-6.11.195 Container suse/sle-micro/5.4/toolbox:14.2-5.19.195 Container suse/sle-micro/5.5/toolbox:14.2-3.12.103 Container suse/sle-micro/5.5:2.0.4-5.5.385 Container suse/sle-micro/base-5.5:2.0.4-5.8.213 Container suse/sle-micro/kvm-5.5:2.0.4-3.5.407 Container suse/sle-micro/rt-5.5:2.0.4-4.5.507 Image SLES15-SP4-BYOS Image SLES15-SP4-BYOS-Azure Image SLES15-SP4-BYOS-EC2 Image SLES15-SP4-BYOS-GCE Image SLES15-SP4-CHOST-BYOS Image SLES15-SP4-CHOST-BYOS-Aliyun Image SLES15-SP4-CHOST-BYOS-Azure Image SLES15-SP4-CHOST-BYOS-EC2 Image SLES15-SP4-CHOST-BYOS-GCE Image SLES15-SP4-CHOST-BYOS-SAP-CCloud Image SLES15-SP4-HPC-BYOS Image SLES15-SP4-HPC-BYOS-Azure Image SLES15-SP4-HPC-BYOS-EC2 Image SLES15-SP4-HPC-BYOS-GCE Image SLES15-SP4-HPC-EC2 Image SLES15-SP4-HPC-GCE Image SLES15-SP4-Hardened-BYOS Image SLES15-SP4-Hardened-BYOS-Azure Image SLES15-SP4-Hardened-BYOS-EC2 Image SLES15-SP4-Hardened-BYOS-GCE Image SLES15-SP4-Manager-Proxy-4-3-BYOS Image SLES15-SP4-Manager-Proxy-4-3-BYOS-Azure Image SLES15-SP4-Manager-Proxy-4-3-BYOS-EC2 Image SLES15-SP4-Manager-Proxy-4-3-BYOS-GCE Image SLES15-SP4-Manager-Server-4-3-BYOS Image SLES15-SP4-Manager-Server-4-3-BYOS-Azure Image SLES15-SP4-Manager-Server-4-3-BYOS-EC2 Image SLES15-SP4-Manager-Server-4-3-BYOS-GCE Image SLES15-SP4-Micro-5-3 Image SLES15-SP4-Micro-5-3-BYOS Image SLES15-SP4-Micro-5-3-BYOS-Azure Image SLES15-SP4-Micro-5-3-BYOS-EC2 Image SLES15-SP4-Micro-5-3-BYOS-GCE Image SLES15-SP4-Micro-5-3-EC2 Image SLES15-SP4-Micro-5-4 Image SLES15-SP4-Micro-5-4-BYOS Image SLES15-SP4-Micro-5-4-BYOS-Azure Image SLES15-SP4-Micro-5-4-BYOS-EC2 Image SLES15-SP4-Micro-5-4-BYOS-GCE Image SLES15-SP4-Micro-5-4-EC2 Image SLES15-SP4-Micro-5-4-GCE Image SLES15-SP5-Azure-3P Image SLES15-SP5-Azure-Basic Image SLES15-SP5-Azure-Standard Image SLES15-SP5-BYOS-Azure Image SLES15-SP5-BYOS-EC2 Image SLES15-SP5-BYOS-GCE Image SLES15-SP5-CHOST-BYOS-Aliyun Image SLES15-SP5-CHOST-BYOS-Azure Image SLES15-SP5-CHOST-BYOS-EC2 Image SLES15-SP5-CHOST-BYOS-GCE Image SLES15-SP5-CHOST-BYOS-GDC Image SLES15-SP5-CHOST-BYOS-SAP-CCloud Image SLES15-SP5-EC2 Image SLES15-SP5-GCE Image SLES15-SP5-HPC-Azure Image SLES15-SP5-HPC-BYOS-Azure Image SLES15-SP5-HPC-BYOS-EC2 Image SLES15-SP5-HPC-BYOS-GCE Image SLES15-SP5-Hardened-BYOS-Azure Image SLES15-SP5-Hardened-BYOS-EC2 Image SLES15-SP5-Hardened-BYOS-GCE Image SLES15-SP5-Manager-Proxy-5-0-BYOS Image SLES15-SP5-Manager-Proxy-5-0-BYOS-Azure Image SLES15-SP5-Manager-Proxy-5-0-BYOS-EC2 Image SLES15-SP5-Manager-Proxy-5-0-BYOS-GCE Image SLES15-SP5-Manager-Server-5-0 Image SLES15-SP5-Manager-Server-5-0-Azure-llc Image SLES15-SP5-Manager-Server-5-0-Azure-ltd Image SLES15-SP5-Manager-Server-5-0-BYOS Image SLES15-SP5-Manager-Server-5-0-BYOS-Azure Image SLES15-SP5-Manager-Server-5-0-BYOS-EC2 Image SLES15-SP5-Manager-Server-5-0-BYOS-GCE Image SLES15-SP5-Manager-Server-5-0-EC2-llc Image SLES15-SP5-Manager-Server-5-0-EC2-ltd Image SLES15-SP5-Micro-5-5 Image SLES15-SP5-Micro-5-5-Azure Image SLES15-SP5-Micro-5-5-BYOS Image SLES15-SP5-Micro-5-5-BYOS-Azure Image SLES15-SP5-Micro-5-5-BYOS-EC2 Image SLES15-SP5-Micro-5-5-BYOS-GCE Image SLES15-SP5-Micro-5-5-EC2 Image SLES15-SP5-Micro-5-5-GCE Image SLES15-SP6 Image SLES15-SP6-Azure-3P Image SLES15-SP6-Azure-Basic Image SLES15-SP6-Azure-Standard Image SLES15-SP6-BYOS Image SLES15-SP6-BYOS-Azure Image SLES15-SP6-BYOS-EC2 Image SLES15-SP6-BYOS-GCE Image SLES15-SP6-CHOST-BYOS Image SLES15-SP6-CHOST-BYOS-Aliyun Image SLES15-SP6-CHOST-BYOS-Azure Image SLES15-SP6-CHOST-BYOS-EC2 Image SLES15-SP6-CHOST-BYOS-GCE Image SLES15-SP6-CHOST-BYOS-GDC Image SLES15-SP6-CHOST-BYOS-SAP-CCloud Image SLES15-SP6-EC2 Image SLES15-SP6-EC2-ECS-HVM Image SLES15-SP6-GCE Image SLES15-SP6-HPC Image SLES15-SP6-HPC-Azure Image SLES15-SP6-HPC-BYOS Image SLES15-SP6-HPC-BYOS-Azure Image SLES15-SP6-HPC-BYOS-EC2 Image SLES15-SP6-HPC-BYOS-GCE Image SLES15-SP6-HPC-EC2 Image SLES15-SP6-HPC-GCE Image SLES15-SP6-Hardened-BYOS Image SLES15-SP6-Hardened-BYOS-Azure Image SLES15-SP6-Hardened-BYOS-EC2 Image SLES15-SP6-Hardened-BYOS-GCE Image ai_15_6 Affected
Container suse/ltss/sle12.5/sles12sp5:8.5.142 Affected
Container suse/sl-micro/6.0/baremetal-os-container:2.1.3-6.94 Container suse/sl-micro/6.0/base-os-container:2.1.3-7.59 Container suse/sl-micro/6.0/kvm-os-container:2.1.3-6.82 Container suse/sl-micro/6.0/rt-os-container:2.1.3-7.94 Container suse/sl-micro/6.0/toolbox:13.2-9.40 Affected
Container suse/sl-micro/6.1/baremetal-os-container:2.2.1-7.20 Container suse/sl-micro/6.1/base-os-container:2.2.1-5.43 Container suse/sl-micro/6.1/kvm-os-container:2.2.1-5.45 Container suse/sl-micro/6.1/rt-os-container:2.2.1-5.33 Affected

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CVE-2025-59375 vulnerability details – vuln.today

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