CVE-2025-59375
Apache Expat Large Allocation Vulnerability
Description
libexpat in Expat before 2.7.2 allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing.
INFO
Published Date :
Sept. 15, 2025, 3:15 a.m.
Last Modified :
June 17, 2026, 9:46 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update libexpat to version 2.7.2 or later.
- Apply vendor-provided security patches.
- Monitor system memory usage.
Public PoC/Exploit Available at Github
CVE-2025-59375 has a 8 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-59375.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-59375 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-59375
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
trivy-nginx-scan
a lightweight Platform-as-a-Service (PaaS) that allows developers to deploy applications by simply pushing their code. It automatically builds, deploys, and exposes applications via a public URL.
Makefile Shell Dockerfile Python Mako HTML JavaScript TypeScript CSS YARA
Multi-agent PR review system (Style, Logic, Security agents) with Celery workers, tree-sitter AST parsing, ChromaDB RAG, and Bayesian confidence arbitration. FastAPI + Redis + NVIDIA NIM.
ast-parsing celery chromadb code-review docker fastapi github-webhooks llm multi-agent nvidia-nim python rag redis tree-sitter
Dockerfile Python Shell Mako Go Template HCL
None
Python
None
Python
This is an attempt to create an end-to-end DevSecOps lab for the OWASP Juice Shop, embedding security controls into the software development lifecycle with hands-on tooling.
Dockerfile Open Policy Agent Python
None
Dockerfile
Toolkit for k8s administrators/developers.
Dockerfile Shell
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-59375 vulnerability anywhere in the article.
-
CybersecurityNews
Firefox 149 Released With Patch for 37 Vulnerabilities that Enables Remote Attacks
Mozilla released Firefox 149 on March 24, 2026, delivering one of the largest security advisories in the browser’s recent history, addressing 37 vulnerabilities spanning memory corruption, sandbox esc ... Read more
The following table lists the changes that have been made to the
CVE-2025-59375 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Siemens', 'product': 'RUGGEDCOM RST2428P', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': 'V3.3', 'versionType': 'custom'}], 'defaultStatus': 'unknown'}, {'vendor': 'Siemens', 'product': 'SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': 'V3.3', 'versionType': 'custom'}], 'defaultStatus': 'unknown'}, {'vendor': 'Siemens', 'product': 'SCALANCE XCH328', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': 'V3.3', 'versionType': 'custom'}], 'defaultStatus': 'unknown'}, {'vendor': 'Siemens', 'product': 'SCALANCE XCM324', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': 'V3.3', 'versionType': 'custom'}], 'defaultStatus': 'unknown'}, {'vendor': 'Siemens', 'product': 'SCALANCE XCM328', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': 'V3.3', 'versionType': 'custom'}], 'defaultStatus': 'unknown'}, {'vendor': 'Siemens', 'product': 'SCALANCE XCM332', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': 'V3.3', 'versionType': 'custom'}], 'defaultStatus': 'unknown'}, {'vendor': 'Siemens', 'product': 'SCALANCE XRH334 (24 V DC, 8xFO, CC)', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': 'V3.3', 'versionType': 'custom'}], 'defaultStatus': 'unknown'}, {'vendor': 'Siemens', 'product': 'SCALANCE XRM334 (230 V AC, 12xFO)', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': 'V3.3', 'versionType': 'custom'}], 'defaultStatus': 'unknown'}, {'vendor': 'Siemens', 'product': 'SCALANCE XRM334 (230 V AC, 8xFO)', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': 'V3.3', 'versionType': 'custom'}], 'defaultStatus': 'unknown'}, {'vendor': 'Siemens', 'product': 'SCALANCE XRM334 (230V AC, 2x10G, 24xSFP, 8xSFP+)', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': 'V3.3', 'versionType': 'custom'}], 'defaultStatus': 'unknown'}, {'vendor': 'Siemens', 'product': 'SCALANCE XRM334 (24 V DC, 12xFO)', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': 'V3.3', 'versionType': 'custom'}], 'defaultStatus': 'unknown'}, {'vendor': 'Siemens', 'product': 'SCALANCE XRM334 (24 V DC, 8xFO)', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': 'V3.3', 'versionType': 'custom'}], 'defaultStatus': 'unknown'}, {'vendor': 'Siemens', 'product': 'SCALANCE XRM334 (24V DC, 2x10G, 24xSFP, 8xSFP+)', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': 'V3.3', 'versionType': 'custom'}], 'defaultStatus': 'unknown'}, {'vendor': 'Siemens', 'product': 'SCALANCE XRM334 (2x230 V AC, 12xFO)', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': 'V3.3', 'versionType': 'custom'}], 'defaultStatus': 'unknown'}, {'vendor': 'Siemens', 'product': 'SCALANCE XRM334 (2x230 V AC, 8xFO)', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': 'V3.3', 'versionType': 'custom'}], 'defaultStatus': 'unknown'}, {'vendor': 'Siemens', 'product': 'SCALANCE XRM334 (2x230V AC, 2x10G, 24xSFP, 8xSFP+)', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': 'V3.3', 'versionType': 'custom'}], 'defaultStatus': 'unknown'}, {'vendor': 'Siemens', 'product': 'SIMATIC S7-1500 CPU 1518-4 PN/DP MFP', 'versions': [{'status': 'affected', 'version': 'V3.1.5', 'lessThan': '*', 'versionType': 'custom'}], 'defaultStatus': 'unknown'}, {'vendor': 'Siemens', 'product': 'SIMATIC S7-1500 CPU 1518-4 PN/DP MFP', 'versions': [{'status': 'affected', 'version': 'V3.1.5', 'lessThan': '*', 'versionType': 'custom'}], 'defaultStatus': 'unknown'}, {'vendor': 'Siemens', 'product': 'SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP', 'versions': [{'status': 'affected', 'version': 'V3.1.5', 'lessThan': '*', 'versionType': 'custom'}], 'defaultStatus': 'unknown'}, {'vendor': 'Siemens', 'product': 'SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP', 'versions': [{'status': 'affected', 'version': 'V3.1.5', 'lessThan': '*', 'versionType': 'custom'}], 'defaultStatus': 'unknown'}, {'vendor': 'Siemens', 'product': 'SIPLUS S7-1500 CPU 1518-4 PN/DP MFP', 'versions': [{'status': 'affected', 'version': 'V3.1.5', 'lessThan': '*', 'versionType': 'custom'}], 'defaultStatus': 'unknown'}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2025-59375', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2025-09-15T20:22:58.509715Z'} -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'libexpat project', 'product': 'libexpat', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '2.7.2', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}] -
CVE Modified by 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
May. 12, 2026
Action Type Old Value New Value Added Reference https://cert-portal.siemens.com/productcert/html/ssa-082556.html Added Reference https://cert-portal.siemens.com/productcert/html/ssa-089022.html -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
May. 01, 2026
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2026/05/01/5 -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 04, 2025
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2025/09/16/2 -
Initial Analysis by [email protected]
Oct. 17, 2025
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:* versions up to (excluding) 2.7.2 Added Reference Type MITRE: https://github.com/libexpat/libexpat/blob/676a4c531ec768732fac215da9730b5f50fbd2bf/expat/Changes#L45-L74 Types: Product Added Reference Type MITRE: https://github.com/libexpat/libexpat/blob/R_2_7_2/expat/Changes Types: Product Added Reference Type MITRE: https://github.com/libexpat/libexpat/issues/1018 Types: Exploit, Issue Tracking Added Reference Type MITRE: https://github.com/libexpat/libexpat/pull/1034 Types: Issue Tracking Added Reference Type MITRE: https://issues.oss-fuzz.com/issues/439133977 Types: Exploit, Issue Tracking -
CVE Modified by [email protected]
Sep. 17, 2025
Action Type Old Value New Value Added Reference https://github.com/libexpat/libexpat/blob/R_2_7_2/expat/Changes -
New CVE Received by [email protected]
Sep. 15, 2025
Action Type Old Value New Value Added Description libexpat in Expat before 2.7.2 allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-770 Added Reference https://github.com/libexpat/libexpat/blob/676a4c531ec768732fac215da9730b5f50fbd2bf/expat/Changes#L45-L74 Added Reference https://github.com/libexpat/libexpat/issues/1018 Added Reference https://github.com/libexpat/libexpat/pull/1034 Added Reference https://issues.oss-fuzz.com/issues/439133977