Is CVE-2008-4099 in the CISA KEV catalog?

No. CVE-2008-4099 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2008-4099?

CVE-2008-4099 has a CVSS v2 base score of 6.4 (MEDIUM).

What is the EPSS score for CVE-2008-4099?

CVE-2008-4099 has an EPSS score of 2.28% (81th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2008-4099?

No published fix for CVE-2008-4099 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2008-4099

MEDIUMEPSS 81th pctl

6.4

CVSS v2

NVD

Description

PyDNS (aka python-dns) before 2.3.1-4 in Debian GNU/Linux does not use random source ports or transaction IDs for DNS requests, which makes it easier for remote attackers to spoof DNS responses, a different vulnerability than CVE-2008-1447.

CWE-16

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

TridentStack Control tracks known vulnerabilities across your Windows, macOS, and Linux fleet and shows the fix as soon as one is published. See how it works

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

2.28%probability of exploitation in 30 days

81stpercentile

Elevated risk: more likely to be exploited than 81% of all known CVEs.

References

Exploit1

bugs.debian.org

Other references3

Related Vulnerabilities

Other CWE-16 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2009-2335	Medium	5.0	85%	-	Fix
CVE-2004-2687	High	9.3	81%	-	Fix
CVE-2006-3677	High	7.5	78%	-	Fix
CVE-2011-4404	Medium	5.0	60%	-	-
CVE-2006-0848	Medium	5.1	58%	-	-
CVE-2007-3898	Medium	6.4	52%	-	-

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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 2026-04-23.