libexpat in Expat before 2.7.2 allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing.
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Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2025-09-15. NVD baseline CVSS 7.5; sources differ by 0.0.
libexpat in Expat before 2.7.2 allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing.
September 15, 2025
May 12, 2026
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Red Hat Security Advisory: Red Hat Update Infrastructure 5.1 security update
Red Hat Security Advisory: Red Hat AI Inference Server 3.2.2 (ROCm)
Red Hat Security Advisory: Red Hat AI Inference Server 3.2.2 (CUDA)
Red Hat Security Advisory: Red Hat Ceph Storage
Red Hat Security Advisory: OpenShift Container Platform 4.12.84 bug fix and security update
Red Hat Security Advisory: A Subscription Management tool for finding and reporting Red Hat product usage
Red Hat Security Advisory: Red Hat AI Inference Server 3.2.5 (ROCm)
Red Hat Security Advisory: Red Hat AI Inference Server 3.2.5 (TPU)
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
libexpat in Expat before 2.7.2 allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing.
RHSA-2025:19020 — Important
RHSA-2025:19403 — Important
RHSA-2025:21030 — Important
RHSA-2025:21773 — Important
RHSA-2025:21776 — Important
RHSA-2025:21974 — Important
RHSA-2025:22033 — Important
RHSA-2025:22034 — Important
RHSA-2025:22035 — Important
RHSA-2025:22175 — Important
RHSA-2025:22607 — Important
RHSA-2025:22618 — Important
RHSA-2025:22785 — Important
RHSA-2025:22842 — Important
RHSA-2025:22871 — Important
RHSA-2025:22935 — Important
RHSA-2025:23227 — Important
Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.
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msrc · redhat · ubuntu