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CVE-2016-2088

36
FAUCET Score

CVE-2016-2088 is a denial-of-service vulnerability affecting ISC BIND 9.10.x versions prior to 9.10.3-P4, specifically when DNS cookies are enabled. A remote attacker can trigger an INSIST assertion failure and daemon exit by sending a malformed packet containing multiple cookie options. This vulnerability has a CVSS score of 6.8 (Medium), indicating a network-based attack with high impact on availability, but requiring high attack complexity. While there is no known public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered some community discussion and media coverage, suggesting awareness. It is not listed in CISA's KEV catalog, and its EPSS score is relatively low, indicating a lower likelihood of exploitation in the wild.

Impacted Technologies

VendorProductVersion(s)CPE
9.10.0CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.10.0:*:*:*:*:*:*:*
9.10.0CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.10.0:a1:*:*:*:*:*:*
9.10.0CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.10.0:a2:*:*:*:*:*:*
9.10.0CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.10.0:b1:*:*:*:*:*:*
9.10.0CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.10.0:b2:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.8MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
4.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
22.79%
Probability of exploitation in next 30 days
EPSS Percentile
97.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.2279 is in the 98th percentile among its peer group of 19,956 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2016-2088Important

bind: malformed packet containing multiple cookie options can trigger assertion failure

Mar 9, 2016

References

lists.fedoraproject.org / pipermail/package-announce/2016-April/181036.html
lists.fedoraproject.org / pipermail/package-announce/2016-March/178831.html
lists.fedoraproject.org / pipermail/package-announce/2016-March/179904.html
kb.isc.org / article/AA-01351
Vendor Advisory
kb.isc.org / article/AA-01380
security.gentoo.org / glsa/201610-07
securityfocus.com / bid/84290
securitytracker.com / id/1035238