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CVE-2023-5680

19
FAUCET Score

CVE-2023-5680 describes a performance degradation vulnerability in BIND 9 versions 9.11.3-S1 through 9.11.37-S1, 9.16.8-S1 through 9.16.45-S1, and 9.18.11-S1 through 9.18.21-S1, as well as NetApp's Active IQ Unified Manager. This issue arises when a resolver cache contains a large number of ECS records for a single name, leading to significant impairment of query performance during cache cleanup. With a CVSS score of 5.3 (Medium), this vulnerability has a low impact on availability and requires no user interaction or privileges to exploit. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
9.11.3CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.11.3:s1:*:*:supported_preview:*:*:*
9.11.3CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.11.3:s4:*:*:supported_preview:*:*:*
9.11.4CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.11.4:s1:*:*:supported_preview:*:*:*
9.11.5CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.11.5:s3:*:*:supported_preview:*:*:*
9.11.5CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.11.5:s5:*:*:supported_preview:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.63%
Probability of exploitation in next 30 days
EPSS Percentile
46.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0063 is in the 29th percentile among its peer group of 23,725 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (3)

nessuspatch availablevia llm_extracted
Fixed in: 9.18.22-S1
View patch
alistgovendor investigatingvia llm_extracted
View patch
consensysvendor investigatingvia llm_extracted
View patch

Vendor Advisories (5)

microsoft2024-Feb/CVE-2023-5680

Cleaning an ECS-enabled cache may cause excessive CPU load

Feb 13, 2024
redhatCVE-2023-5680Moderate

bind9: Cleaning an ECS-enabled cache may cause excessive CPU load

Feb 13, 2024
nessusllm-nessus-d7a402b8ae1c0449
alistgollm-alistgo-6662880d67e685b9

Cleaning an ECS-enabled cache may cause excessive CPU load

consensysllm-consensys-d3a2727cf3267743

References

kb.isc.org / docs/cve-2023-5680
Vendor Advisory
security.netapp.com / advisory/ntap-20240503-0005
Third Party Advisory