CVE-2018-5744

Name: CVE-2018-5744
Creator: NVD / NIST
Published: 2019-10-09T16:15:13.907+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 3.35%

Last modified Jun 17, 2026

CVE-2018-5744 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A failure to free memory can occur when processing messages having a specific combination of EDNS options. Versions affected are: BIND 9.10.7 -> 9.10.8-P1, 9.11.3 -> 9.11.5-P1, 9.12.0 -> 9.12.3-P1, and versions 9.10.7-S1 -> 9.11.5-S3 of BIND 9 Supported Preview Edition. EPSS estimates a 3.35% chance of exploitation in the next 30 days.

Description

A failure to free memory can occur when processing messages having a specific combination of EDNS options. Versions affected are: BIND 9.10.7 -> 9.10.8-P1, 9.11.3 -> 9.11.5-P1, 9.12.0 -> 9.12.3-P1, and versions 9.10.7-S1 -> 9.11.5-S3 of BIND 9 Supported Preview Edition. Versions 9.13.0 -> 9.13.6 of the 9.13 development branch are also affected.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

3.35%

87.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-772

Affected Software

Vendor	Product	Versions	Update
Isc	Bind	>= 9.10.7, < 9.10.8	—
Isc	Bind	>= 9.11.3, < 9.11.5	—
Isc	Bind	>= 9.12.0, < 9.12.3	—
Isc	Bind	>= 9.13.0, < 9.13.6	—
Isc	Bind	9.10.7	S1
Isc	Bind	9.10.8	—
Isc	Bind	9.11.5	—
Isc	Bind	9.12.3	—

References

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

Timeline

Published: Oct 9, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-5744?

How severe is CVE-2018-5744?

CVE-2018-5744 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 3.35% probability of exploitation in the next 30 days.

How do I fix CVE-2018-5744?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-5744?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST