Is CVE-2015-5470 in the CISA KEV catalog?

No. CVE-2015-5470 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2015-5470?

CVE-2015-5470 has a CVSS v2 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2015-5470?

CVE-2015-5470 has an EPSS score of 11.28% (95th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2015-5470

HIGHEPSS 95th pctl

7.8

CVSS v2

NVD

Description

The label decompression functionality in PowerDNS Recursor before 3.6.4 and 3.7.x before 3.7.3 and Authoritative (Auth) Server before 3.3.3 and 3.4.x before 3.4.5 allows remote attackers to cause a denial of service (CPU consumption or crash) via a request with a long name that refers to itself. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-1868.

CWE-399

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

11.28%probability of exploitation in 30 days

95thpercentile

Very high risk: more likely to be exploited than 95% of all known CVEs.

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.