No exploitation reportedFix available

CVE-2017-14496

Q: Is CVE-2017-14496 actively exploited?

Active exploitation of CVE-2017-14496 has not been confirmed. Its EPSS score was 69.4% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2017-14496?

CVE-2017-14496 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

No exploitation reported by the sources we read.

Published2017-10-03
WeaknessCWE-191

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Integer underflow in the add_pseudoheader function in dnsmasq before 2.78 , when the --add-mac, --add-cpe-id or --add-subnet option is specified, allows remote attackers to cause a denial of service via a crafted DNS request.

Timeline

dates in UTC

2017-10-0301:29CVE publishedNVD
2026-10-2319:23EPSS crossed 10 %FIRST EPSS

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2017-14496?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2017-14496?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Google android

Branch	Affected	Fixed in	Source
4.4	= 4.4.4	no fix published	NVD
5.0	= 5.0.2	no fix published	NVD
5.1	= 5.1.1	no fix published	NVD
6.0	= 6.0	no fix published	NVD
6.0	= 6.0.1	no fix published	NVD
7.0	= 7.0	no fix published	NVD
7.1	= 7.1.1	no fix published	NVD
7.1	= 7.1.2	no fix published	NVD
8.0	= 8.0	no fix published	NVD

Canonical ubuntu linux

Branch	Affected	Fixed in	Source
14.4	= 14.04	no fix published	NVD
16.4	= 16.04	no fix published	NVD
17.4	= 17.04	no fix published	NVD

Debian debian linux

Branch	Affected	Fixed in	Source
7.0	= 7.0	no fix published	NVD
7.1	= 7.1	no fix published	NVD
9.0	= 9.0	no fix published	NVD

5 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

ICSA-17-332-01 CISA3 known affected
Siemens SCALANCE W1750D, M800, S615, and RUGGEDCOM RM1224 (Update C)
Siemens RUGGEDCOM RM1224: All versions < V5.0 · Siemens SCALANCE M-800 / S615: All versions < V5.0 · Siemens SCALANCE W1750D: All versions < V6.5.1.5

Full record on NVD

Fix

Vendor fix CISA ICSA-17-332-01 · 2 productsUpdate to V5.0 or later version https://support.industry.siemens.com/cs/ww/en/view/109757544
Vendor fix CISA ICSA-17-332-01 · 1 productUpdate to V6.5.1.5 or later version https://support.industry.siemens.com/cs/ww/en/view/109778052
Mitigation from the vendor CISA ICSA-17-332-01 · 2 productsSCALANCE M-800 / S615 and RUGGEDCOM RM1224: Disable DNS proxy in the device configuration (System - DNS - DNS Proxy - Disable Checkbox 'Enable DNS Proxy'), and configure the connected devices in the internal network to use a different DNS server
Mitigation from the vendor CISA ICSA-17-332-01 · 1 productSCALANCE W1750D: If 'OpenDNS', 'Captive Portal' or 'URL redirection' functionality is not used, deploy firewall rules in the device configuration to block incoming access to port 53/UDP

Advisories and patches

thekelleys.org.ukRelease Notes · Vendor Advisory
access.redhat.comPatch

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.07.5read 2026-10-23
NVDCVSS 2.07.8read 2026-10-23
NVDweakness (CWE)CWE-191read 2026-10-23
FIRST EPSSEPSS score69.4 %read 2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published: 2017-10-03
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2017-14496?

Is CVE-2017-14496 actively exploited?

Active exploitation of CVE-2017-14496 has not been confirmed. Its EPSS score was 69.4% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2017-14496?

CVE-2017-14496 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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