CVE-2026-1425
MEDIUMCVSS VectorNVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Lifecycle Timeline
2DescriptionNVD
A security flaw has been discovered in pymumu SmartDNS up to 47.1. This vulnerability affects the function _dns_decode_rr_head/_dns_decode_SVCB_HTTPS of the file src/dns.c of the component SVBC Record Parser. The manipulation results in stack-based buffer overflow. It is possible to launch the attack remotely. A high complexity level is associated with this attack. It is stated that the exploitability is difficult. The patch is identified as 2d57c4b4e1add9b4537aeb403f794a084727e1c8. Applying a patch is advised to resolve this issue.
AnalysisAI
Stack-based buffer overflow in pymumu SmartDNS versions up to 47.1 within the SVBC Record Parser component allows remote attackers to cause information disclosure and limited integrity/availability impact through specially crafted DNS SVCB/HTTPS records. Exploitation requires high complexity and specific conditions, making practical attacks difficult. …
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RemediationAI
Within 30 days: Identify affected systems running pymumu SmartDNS and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.
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External POC / Exploit Code
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