Is CVE-2017-14493 actively exploited?

CVE-2017-14493 has no public evidence of in-the-wild exploitation as of 2025-04-20.

What is the CVSS score for CVE-2017-14493?

CVE-2017-14493 has a CVSS score of 9.8 (CRITICAL severity). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2017-14493?

Patch guidance is available from canonical security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2017-14493.

Fix CVE-2017-14493 - CRITICAL canonical ubuntu linux

Q: Which products are affected by CVE-2017-14493?

12 products: canonical ubuntu linux, canonical ubuntu linux, canonical ubuntu linux, debian debian linux, debian debian linux, and 7 more.

Description

Stack-based buffer overflow in dnsmasq before 2.78 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a crafted DHCPv6 request.

CVSS Metrics

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-119 · Memory Buffer Errors

Metadata

Primary Vendor: CANONICAL
Published: 10/3/2017
Last Modified: 4/20/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

canonical : ubuntu_linuxcanonical : ubuntu_linuxcanonical : ubuntu_linuxdebian : debian_linuxdebian : debian_linuxdebian : debian_linuxopensuse : leapopensuse : leapredhat : enterprise_linux_desktopredhat : enterprise_linux_serverredhat : enterprise_linux_workstationthekelleys : dnsmasq

Remediation Guidance

Executive Summary

View on NIST NVD