CVE-2023-31470

PoC —

CVSS 3.1

9.8 critical

EPSS

1%p64

Published

Apr 28, 2023 (Apr 28, 2023)

Modified

Jun 17, 2026

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.

Vendors: pymumu
Products: smartdns
Weakness: CWE-787
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (1.1%)

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