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CVE-2018-5744

26
FAUCET Score

CVE-2018-5744 is a denial-of-service vulnerability affecting multiple versions of ISC BIND 9, including specific releases in the 9.10, 9.11, 9.12, and 9.13 development branches. The flaw stems from a memory leak when processing DNS messages containing a particular combination of EDNS options. With a CVSS score of 7.5 (High), this vulnerability can be exploited remotely with low attack complexity, leading to a complete loss of availability for affected DNS servers. There is currently no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant media coverage, though it has garnered some community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
>= 9.10.7, < 9.10.8CPE matchmatch criteria
cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*
>= 9.11.3, < 9.11.5CPE matchmatch criteria
cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*
>= 9.12.0, < 9.12.3CPE matchmatch criteria
cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*
>= 9.13.0, < 9.13.6CPE matchmatch criteria
cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*
9.10.7CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.10.7:s1:*:*:supported_preview:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
3.38%
Probability of exploitation in next 30 days
EPSS Percentile
87.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0338 is in the 78th percentile among its peer group of 51,553 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2018-5744Important

bind: A specially crafted packet can cause named to leak memory

Feb 21, 2019

References

kb.isc.org / docs/cve-2018-5744
Vendor Advisory