CVE-2025-66382
low
CVSS v3
2.9
CVSS v4 NEW
—
VIR risk
2.9
Description
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.
Predictions
Exploit likelihood
30%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Debian Affected 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Affected | — |
| sid | Affected | — |
| forky | Affected | — |
| bullseye | Affected | — |
| bookworm | Affected | — |
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| libexpat_project | libexpat | {"endIncluding":"2.7.3"} | |
References
- https://github.com/libexpat/libexpat/issues/1076
- http://www.openwall.com/lists/oss-security/2025/12/02/1
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
- https://security-tracker.debian.org/tracker/CVE-2025-66382
- https://www.suse.com/security/cve/CVE-2025-66382.html
- https://cert-portal.siemens.com/productcert/html/ssa-253495.html
CWEs
CWE-407
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.