CVE-2023-31893

HIGHNVD 7.57.5—

7.5

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

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 29.7%
KEV: Not listed

Published

June 5, 2023

Last Modified

January 31, 2025

References (4)

cve@mitrehttps://medium.com/%40shooterRX/dns-recursion-leads-to-dos-attack-vivo-play-iptv-cve-2023-31893-b5ac45f38f
cve@mitrehttps://www.cert.br/docs/whitepapers/dns-recursivo-aberto/
af854a3a-2127-422b-91ae-364da2661108https://medium.com/%40shooterRX/dns-recursion-leads-to-dos-attack-vivo-play-iptv-cve-2023-31893-b5ac45f38f
af854a3a-2127-422b-91ae-364da2661108https://www.cert.br/docs/whitepapers/dns-recursivo-aberto/

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-674Uncontrolled Recursion

Data Freshness Timeline

(refreshed 12× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:12 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
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2026-05-31 22:29 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
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2026-05-29 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-24 23:59 UTCEG score recompute

Frequently asked(5)

What is CVE-2023-31893?

CVE-2023-31893 is a high vulnerability published on June 5, 2023. Telefnica Brasil Vivo Play (IPTV) Firmware: 2023.04.04.01.06.15 is vulnerable to Denial of Service (DoS) via DNS Recursion.

When was CVE-2023-31893 disclosed?

CVE-2023-31893 was first published in the National Vulnerability Database on June 5, 2023, with the most recent update on January 31, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2023-31893 actively exploited?

CVE-2023-31893 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 29.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-31893?

CVE-2023-31893 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2023-31893?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-31893, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2023-31893

📅 Published

🔄 Last Modified

🔗 References (4)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-31893?

🔗 Related CVEs(same CWE)

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Published

Last Modified

References (4)

Frequently asked(5)

Related CVEs(same CWE)