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libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a stack-based buffer overflow in xmlSnprintfElements in valid.c. To exploit this, DTD validation must occur for an untrusted document or untrusted DTD. NOTE: this is similar to CVE-2017-9047.

🗓️ 27 Feb 2025 08:00:00Reported by MicrosoftType 
mscve
 mscve🔗 msrc.microsoft.com👁 1 Views

Libxml2 before 2.12.10 and 2.13.x before 2.13.6 have a stack overflow in xmlSnprintfElements during DTD validation of untrusted input.

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Rows per page
Vulners
Node
microsoftazl3_libxml2_2.11.5-5Range<2.11.5-4
OR
microsoftazl3_libxml2_2.11.5-4Range<2.11.5-4
OR
microsoftcbl2_libxml2_2.10.4-6Range<2.10.4-6

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19 Feb 2026 09:24Current
6.7Medium risk
Vulners AI Score6.7
CVSS 25
CVSS 37.5
CVSS 3.17.7 - 7.8
EPSS0.0266
SSVC
libxml2stack overflowxmlSnprintfElementsDTD validationuntrusted input
1