CVE-2009-3602
Status: ModifiedHigh (7.5)—
Unbound before 1.3.4 does not properly verify signatures for NSEC3 records, which allows remote attackers to cause secure delegations to be downgraded via DNS spoofing or other DNS-related attacks in conjunction with crafted delegation responses.
CVSS
- Version: 2.0
- Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
- Base score: 7.5
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 2.98%
- Percentile among all scored CVEs: 87
- Score date: 10/7/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
Affected technologies (1)
CWEs
- CWE-310
References
- http://osvdb.org/58836
- http://secunia.com/advisories/36996
- http://secunia.com/advisories/37913
- http://unbound.net/pipermail/unbound-users/2009-October/000852.html
- http://www.debian.org/security/2009/dsa-1963
- http://www.openwall.com/lists/oss-security/2009/10/09/2
- http://www.openwall.com/lists/oss-security/2009/10/09/3
- http://www.vupen.com/english/advisories/2009/2875
- https://exchange.xforce.ibmcloud.com/vulnerabilities/53729
- http://osvdb.org/58836
- http://secunia.com/advisories/36996
- http://secunia.com/advisories/37913
- http://unbound.net/pipermail/unbound-users/2009-October/000852.html
- http://www.debian.org/security/2009/dsa-1963
- http://www.openwall.com/lists/oss-security/2009/10/09/2
- http://www.openwall.com/lists/oss-security/2009/10/09/3
- http://www.vupen.com/english/advisories/2009/2875
- https://exchange.xforce.ibmcloud.com/vulnerabilities/53729
Raw JSON (NVD)
Show
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