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CVE-2025-59375

Good to know:

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Date: September 14, 2025

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

Severity Score

Related Resources (9)

https://nvd.nist.gov/vuln/detail/CVE-2025-59375
https://security-tracker.debian.org/tracker/CVE-2025-59375
https://github.com/libexpat/libexpat/blob/676a4c531ec768732fac215da9730b5f50fbd2bf/expat/Changes#L45-L74
https://github.com/libexpat/libexpat/issues/1018
https://github.com/libexpat/libexpat/pull/1034
https://issues.oss-fuzz.com/issues/439133977
https://security.alpinelinux.org/vuln/CVE-2025-59375
https://github.com/libexpat/libexpat/blob/R_2_7_2/expat/Changes
https://www.mend.io/vulnerability-database/CVE-2025-59375

Severity Score

Weakness Type (CWE)

Allocation of Resources Without Limits or Throttling

CWE-770

Top Fix

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Upgrade Version

Upgrade to version expat - no_fix;https://github.com/libexpat/libexpat.git - R_2_7_3

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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