What’s Vulnerable › Vulnerabilities

CVE-2023-31893

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-06-05 · updated 2026-06-17
• Weakness: CWE-674

Description

Telefnica Brasil Vivo Play (IPTV) Firmware: 2023.04.04.01.06.15 is vulnerable to Denial of Service (DoS) via DNS Recursion.

Affected products

• Telefonica Brasil Vivo Play Firmware: 2023.04.04.01.06.15

References

• https://medium.com/%40shooterRX/dns-recursion-leads-to-dos-attack-vivo-play-iptv-cve-2023-31893-b5ac45f38f
• https://www.cert.br/docs/whitepapers/dns-recursivo-aberto/
• https://medium.com/%40shooterRX/dns-recursion-leads-to-dos-attack-vivo-play-iptv-cve-2023-31893-b5ac45f38f
• https://www.cert.br/docs/whitepapers/dns-recursivo-aberto/

Get alerted when CVE-2023-31893 or the next vulnerability affects your stack