CVE-2016-2088
resolver.c in named in ISC BIND 9.10.x before 9.10.3-P4, when DNS cookies are enabled, allows remote attackers to cause a denial of service (INSIST assertion failure and daemon exit) via a malformed packet with more than one cookie option.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 22.7%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
Description
resolver.c in named in ISC BIND 9.10.x before 9.10.3-P4, when DNS cookies are enabled, allows remote attackers to cause a denial of service (INSIST assertion failure and daemon exit) via a malformed packet with more than one cookie option.
- CVSS 3.0
- 6.8 MEDIUMCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
- EPSS
- 22.71% probability · 98th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- isc/bind
- Source
- cve@mitre.org
EPSS moved from 7.6% on 21 September 2026 to 22.7% on 4 November 2026, peaking at 22.8% on 22 September 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
References
- http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181036.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178831.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-March/179904.html
- http://www.securityfocus.com/bid/84290
- http://www.securitytracker.com/id/1035238
- https://kb.isc.org/article/AA-01351Vendor Advisory
- https://kb.isc.org/article/AA-01380
- https://security.gentoo.org/glsa/201610-07
- http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181036.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178831.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-March/179904.html
- http://www.securityfocus.com/bid/84290
- http://www.securitytracker.com/id/1035238
- https://kb.isc.org/article/AA-01351Vendor Advisory
- https://kb.isc.org/article/AA-01380
- https://security.gentoo.org/glsa/201610-07
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.