CVE-2023-31470

CRITICAL 9.8CVE-2023-31470 · Published 28/04/2023 · updated 17/06/2026

In short

CVE-2023-31470 is a CRITICAL (CVSS 9.8) vulnerability affecting smartdns (pymumu).
Chance of exploitation in the next 30 days (EPSS): 1.1%, higher than 66.2% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
smartdns pymumu	`≤ 41`	No fix yet

Description

SmartDNS through 41 before 56d0332 allows an out-of-bounds write because of a stack-based buffer overflow in the _dns_encode_domain function in the dns.c file, via a crafted DNS request.

References

pymumu/smartdns commit 56d0332 · Patch
pymumu/smartdns · Exploit

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