Search/CVE-2026-6653
● CVE — Critical

CVE-2026-6653

VendorxmlsoftProductlibxml2DiscoveredJun 22, 2026UpdatedOct 25, 2026

Use After Free in libxml2's xmlParseInternalSubset from GNOME libxml2 version 2.9.11 to 2.11.0 allows a remote attacker to cause a denial-of-service via maliciously crafted XML input with improper entity resolution handling.

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CVSS v3.1
9.8 CRITICAL
EPSS
0.36%
probability of exploitation in 30 days
CISA KEV
Not listed
no confirmed exploitation reported
News coverage
0
sources referencing this CVE
Related IOCs
0
seen in the same coverage
EPSS Trend
Aug 26, 2026 → Sep 2, 2026
▼ 0.22pp
0.58% → 0.36% over 2 tracked changes
CVSS v3.1 Detail
Attack VectorNETWORK
Attack ComplexityLOW
Privileges RequiredNONE
User InteractionNONE
ScopeUNCHANGED
ConfidentialityHIGH
IntegrityHIGH
AvailabilityHIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Connections
3 relationships
Timeline
disclosure → media coverage
Jun 22, 2026
Disclosure — published as a CVE record. · last revised by NVD Oct 25, 2026