CVE-2019-14513

Name: CVE-2019-14513
Creator: NVD / NIST
Published: 2019-08-01T21:15:12.247+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.70%

Last modified Jun 17, 2026

CVE-2019-14513 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Improper bounds checking in Dnsmasq before 2.76 allows an attacker controlled DNS server to send large DNS packets that result in a read operation beyond the buffer allocated for the packet, a different vulnerability than CVE-2017-14491.. EPSS estimates a 1.70% chance of exploitation in the next 30 days.

Description

Improper bounds checking in Dnsmasq before 2.76 allows an attacker controlled DNS server to send large DNS packets that result in a read operation beyond the buffer allocated for the packet, a different vulnerability than CVE-2017-14491.

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

1.70%

74.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-125

Affected Software

Vendor	Product	Versions
Thekelleys	Dnsmasq	< 2.76
Debian	Debian Linux	8.0

References

https://github.com/Slovejoy/dnsmasq-pre2.76Exploit, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/09/msg00013.htmlMailing List, Third Party Advisory
https://github.com/Slovejoy/dnsmasq-pre2.76Exploit, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/09/msg00013.htmlMailing List, Third Party Advisory

Timeline

Published: Aug 1, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-14513?

How severe is CVE-2019-14513?

CVE-2019-14513 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.70% probability of exploitation in the next 30 days.

How do I fix CVE-2019-14513?

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-2019-14513?

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

Scan your code now

Source: NVD / NIST