CVE-2017-14495

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2022-05-13. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Weaponized
7.5
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 84%
CISA-KEV: Not listedEPSS: 84%CVSS: 7.5Exploit: NoneExposed: 0

A fix is available — apply it.

Memory leak 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 (memory consumption) via vectors involving DNS response creation.

CVSS v3
7.5
EG Score
7.5(medium)
EPSS
99.7%
KEV
Not listed

Published

October 3, 2017

Last Modified

May 13, 2026

References (42)

Patch Availability(3)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntudnsmasq-utils (2.76-5ubuntu0.1) @ zesty2026-05-22ubuntu
ubuntudnsmasq-base (2.59-4ubuntu0.3) @ precise2026-05-22ubuntu
redhatdnsmasq-0:2.76-2.el7_4.22017-10-02redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

All Vendor Advisories

(3)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 4× in last 7d / 16× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-06 02:20 UTCEPSS rescore
  2. 2026-07-04 06:28 UTCEPSS rescore
  3. 2026-07-01 15:02 UTCEPSS rescore
  4. 2026-07-01 15:02 UTCEPSS rescore
  5. 2026-06-25 13:47 UTCEPSS rescore
  6. 2026-06-25 13:47 UTCEPSS rescore
  7. 2026-06-23 21:30 UTCEPSS rescore
  8. 2026-06-22 23:30 UTCOSV refresh
  9. 2026-06-21 14:54 UTCEPSS rescore
  10. 2026-06-21 14:54 UTCEPSS rescore
  11. 2026-06-16 17:50 UTCEPSS rescore
  12. 2026-06-15 17:45 UTCEPSS rescore
  13. 2026-06-12 23:09 UTCEPSS rescore
  14. 2026-06-11 13:57 UTCEPSS rescore
  15. 2026-06-10 22:15 UTCEPSS rescore
  16. 2026-06-08 14:14 UTCEPSS rescore
  17. 2026-06-06 13:45 UTCEPSS rescore
  18. 2026-06-06 13:45 UTCEPSS rescore
  19. 2026-06-05 22:44 UTCEPSS rescore
  20. 2026-06-05 17:27 UTCOSV refresh
  21. 2026-06-05 06:08 UTCEPSS rescore
  22. 2026-06-05 06:08 UTCEPSS rescore
  23. 2026-06-04 13:10 UTCEPSS rescore
  24. 2026-06-04 13:10 UTCEPSS rescore
  25. 2026-06-02 20:11 UTCEPSS rescore
Show 22 more
  1. 2026-06-02 20:11 UTCEPSS rescore
  2. 2026-05-31 22:28 UTCEPSS rescore
  3. 2026-05-31 00:14 UTCEPSS rescore
  4. 2026-05-29 13:41 UTCEPSS rescore
  5. 2026-05-28 13:42 UTCEPSS rescore
  6. 2026-05-28 13:42 UTCEPSS rescore
  7. 2026-05-27 13:38 UTCEPSS rescore
  8. 2026-05-27 13:38 UTCEPSS rescore
  9. 2026-05-26 13:42 UTCEPSS rescore
  10. 2026-05-26 13:42 UTCEPSS rescore
  11. 2026-05-22 21:15 UTCEPSS rescore
  12. 2026-05-22 21:15 UTCEPSS rescore
  13. 2026-05-22 21:15 UTCEPSS rescore
  14. 2026-05-22 09:21 UTCEG score recompute
  15. 2026-05-22 09:21 UTCVendor advisory
  16. 2026-05-22 09:21 UTCGHSA enrichment
  17. 2026-05-20 22:37 UTCEPSS rescore
  18. 2026-05-20 22:37 UTCEPSS rescore
  19. 2026-05-20 11:21 UTCEPSS rescore
  20. 2026-05-20 11:21 UTCEPSS rescore
  21. 2026-05-18 21:30 UTCEPSS rescore
  22. 2026-05-18 21:30 UTCEPSS rescore

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-42945✓ verified
    First seen Oct 2, 2017

    Dnsmasq < 2.78 - Lack of free() Denial of Service

    Open source ↗

Related CVEs(same vendor)

Frequently asked(5)

What is CVE-2017-14495?
CVE-2017-14495 is a high vulnerability published on October 3, 2017. Memory leak 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 (memory consumption) via vectors involving DNS response creation.
When was CVE-2017-14495 disclosed?
CVE-2017-14495 was first published in the National Vulnerability Database on October 3, 2017, with the most recent update on May 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-14495 actively exploited?
CVE-2017-14495 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2017-14495?
CVE-2017-14495 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2017-14495?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-14495, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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