In libexpat through 2.7.3, a crafted file with an approximate size of 2 MiB can lead to dozens of seconds of processing time. — CVE-2025-66382
Date
Source
MSRC
MSRC
Vendor
Microsoft
Microsoft
Threat
low
low
CVSS
2.9
2.9
Summary
Advisory CVE-2025-66382. In libexpat through 2.7.3, a crafted file with an approximate size of 2 MiB can lead to dozens of seconds of processing time. Vendor: Microsoft. Source: MSRC. Threat: low. CVSS 2.9. See the official advisory for…
What to do
General, cautious steps (verify details in the official source):
- Review exposure and plan remediation based on risk and environment.
- Identify affected product versions in your inventory and verify whether you are impacted.
- Apply vendor patches/updates or recommended mitigations as soon as available.
- Read the official advisory for exact affected versions and remediation steps.