CVE-2025-6021
Libxml2: integer overflow in xmlbuildqname() leads to stack buffer overflow in libxml2
Description
A flaw was found in libxml2's xmlBuildQName function, where integer overflows in buffer size calculations can lead to a stack-based buffer overflow. This issue can result in memory corruption or a denial of service when processing crafted input.
No summary for this CVE yet.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:LAttack ComplexityLow
PR:NPrivileges RequiredNone
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:NConfidentialityNone
I:NIntegrityNone
A:HAvailabilityHigh
Weaknesses
Affected Products
Red Hat Inc.
commercial·USaka Red Hat, redhat
АО «НТЦ ИТ РОСА»
commercial·RU
ООО «РусБИТех-Астра»
commercial·RUaka rusbitech-astra
xmlsoft
oss-projectaka libxml2, libxslt
ООО «Ред Софт»
commercial·RUaka red soft
and 49 more affected products View all →
Exploitability
1 exploit source identified
Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.
View exploit details Official Patch Available
Workaround Available
Attack Graph
Products CVE Techniques Tactics
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MITRE ATT&CK
2 techniques Initial Access
Privilege Escalation
References
https://access.redhat.com/errata/RHSA-2025:10630
access.redhat.com
https://access.redhat.com/errata/RHSA-2025:10698
access.redhat.com
https://access.redhat.com/errata/RHSA-2025:10699
access.redhat.com
and 309 more references View all →
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