CVE-2016-2088

6.8 MEDIUM 23% exploit odds Fix listed Denial of service

What it is

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.

At a glance

Exploitability: Can be exploited over the network without logging in. High risk of service disruption.
Exploit odds: 22.7% chance of exploitation in the next 30 days (EPSS). Higher than most.
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2016-03-09 23:59 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 00:43 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 22.7% in the next 30 days (EPSS).
Severity: 6.8 MEDIUM (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2016-03-09 23:59 UTC
Last modified: 2026-06-17 00:43 UTC
Exploit probability: 22.7% · EPSS, next 30 days
Weakness: CWE-20 · Improper input validation
Record status: Modified

Affected

Isc Bind 9.10.0
Isc Bind 9.10.1
Isc Bind 9.10.2
Isc Bind 9.10.3

Attack profile CVSS 3.0 · 6.8

Attack vector: Network
Complexity: High
Privileges needed: None
User interaction: None
Scope: Changed
Confidentiality: None
Integrity: None
Availability: High

Raw vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H

Is it in your code?

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Read https://cve-list.com/agent/cve/CVE-2016-2088.md and follow it. Check whether this project is affected by CVE-2016-2088. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record