What’s Vulnerable › Vulnerabilities

CVE-2023-31470

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-04-28 · updated 2026-06-17
• Weakness: CWE-787

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.

Affected products

• pymumu SmartDNS: through 41

References

• https://github.com/pymumu/smartdns/commit/56d0332bf91104cfc877635f6c82e9348587df04
• https://github.com/pymumu/smartdns/issues/1378
• https://github.com/pymumu/smartdns/commit/56d0332bf91104cfc877635f6c82e9348587df04
• https://github.com/pymumu/smartdns/issues/1378

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