Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2017-14495

80
FAUCET Score

CVE-2017-14495 is a memory leak vulnerability in dnsmasq versions prior to 2.78, specifically when certain options like --add-mac are enabled, affecting various products including Canonical, Debian, and Red Hat. This high-severity flaw (CVSS 7.5) allows remote, unauthenticated attackers to cause a denial of service through memory exhaustion with low attack complexity. While not listed in CISA's KEV catalog, public exploit code exists (EDB-42945), and the vulnerability has garnered significant community discussion and media coverage, indicating widespread awareness.

Impacted Technologies

VendorProductVersion(s)CPE
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
16.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
17.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:17.04:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
7.1CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:7.1:*:*:*:*:*:*:*

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
84.32%
Probability of exploitation in next 30 days
EPSS Percentile
99.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
ExploitDB: EDB-42945 · Oct 2, 2017
This CVE's current EPSS score of 0.8432 is in the 100th 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

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

Remediation

Patch Available

Vendor Patches (2)

redhatpatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: dnsmasq-0:2.76-2.el7_4.2
View patch

Vendor Advisories (1)

redhatCVE-2017-14495Important

dnsmasq: memory exhaustion vulnerability in the EDNS0 code

Oct 2, 2017

References

lists.opensuse.org / opensuse-security-announce/2017-10/msg00006.html
Issue TrackingMailing ListThird Party Advisory
nvidia.custhelp.com / app/answers/detail/a_id/4561
access.redhat.com / errata/RHSA-2017:2836
PatchThird Party Advisory
access.redhat.com / security/vulnerabilities/3199382
Issue TrackingThird Party Advisory
cert-portal.siemens.com / productcert/pdf/ssa-689071.pdf
security.gentoo.org / glsa/201710-27
security.googleblog.com / 2017/10/behind-masq-yet-more-dns-and-dhcp.html
Third Party Advisory
exploit-db.com / exploits/42945
Third Party AdvisoryVDB Entry
kb.cert.org / vuls/id/973527
Third Party AdvisoryUS Government Resource
mail-archive.com / dnsmasq-discuss%40lists.thekelleys.org.uk/msg11664.html
mail-archive.com / dnsmasq-discuss%40lists.thekelleys.org.uk/msg11665.html
synology.com / support/security/Synology_SA_17_59_Dnsmasq
thekelleys.org.uk / dnsmasq/CHANGELOG
Release NotesVendor Advisory
thekelleys.org.uk / gitweb
arubanetworks.com / assets/alert/ARUBA-PSA-2017-005.txt
debian.org / security/2017/dsa-3989
Third Party Advisory
securityfocus.com / bid/101085
Third Party AdvisoryVDB Entry
securityfocus.com / bid/101977
securitytracker.com / id/1039474
Third Party AdvisoryVDB Entry
ubuntu.com / usn/USN-3430-1
Third Party Advisory
ubuntu.com / usn/USN-3430-2
Third Party Advisory