A vulnerability was found in dnsmasq before version 2.81, where the memory leak allows remote attackers to cause a denial of service (memory consumption) via vectors involving DHCP response creation.
CVE-2019-14834
Score 3.7 from GitHub Security Advisory published 2022-05-24. NVD baseline CVSS 3.7; sources differ by 0.0.
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v3
- 3.7
- EG Score
- 3.7(medium)
- EG Risk
- 22(Track)EG Risk 22/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity37% × 45%Exploitation3% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS
- 84.1%
- KEV
- Not listed
Published
January 7, 2020
Last Modified
November 21, 2024
References (6)
- secalert@redhathttp://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=69bc94779c2f035a9fffdb5327a54c3aeca73ed5
- secalert@redhathttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14834
- secalert@redhathttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JU474LT66BHNVFG5C4GEV3VTZNAEJ3BS/
- af854a3a-2127-422b-91ae-364da2661108http://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=69bc94779c2f035a9fffdb5327a54c3aeca73ed5
- af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14834
- af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JU474LT66BHNVFG5C4GEV3VTZNAEJ3BS/
Patch Availability(4)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | dnsmasq-utils (2.82-1ubuntu1.1) @ groovy | 2026-05-27 | ubuntu |
| ubuntu | dnsmasq-utils (2.68-1ubuntu0.2+esm3) @ trusty | 2026-05-27 | ubuntu |
| redhat | dnsmasq-0:2.76-16.el7 | 2020-09-29 | redhat |
| redhat | dnsmasq-0:2.79-11.el8 | 2020-04-28 | redhat |
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.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
All Vendor Advisories
(5)
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.
- Microsoft MSRCCVE-2019-148342020-08-18
A vulnerability was found in dnsmasq before version 2.81 where the memory leak allows remote attackers to cause a denial of service (memory consumption) via vectors involving DHCP response creation.
- Red HatRHSA-2020:1715LOW2019-10-23
RHSA-2020:1715 — Low
- Red HatRHSA-2020:3878LOW2019-10-23
RHSA-2020:3878 — Low
- UbuntuUSN-4698-1LOW
Dnsmasq vulnerabilities
- UbuntuUSN-7689-1LOW
Dnsmasq vulnerability
Data Freshness Timeline
(refreshed 14× in last 7d / 43× 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.
- 2026-07-23 01:40 UTCEG score recompute
- 2026-07-22 22:20 UTCEG score recompute
- 2026-07-22 14:05 UTCEPSS rescore
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- 2026-07-19 22:08 UTCOSV refresh
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- 2026-07-02 12:46 UTCOSV refresh
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- 2026-06-14 11:13 UTCOSV refresh
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- 2026-05-27 13:38 UTCEPSS rescore
- 2026-05-27 09:34 UTCEG score recompute
- 2026-05-27 09:34 UTCVendor advisory
- 2026-05-27 09:34 UTCGHSA enrichment
- 2026-05-26 13:42 UTCEPSS rescore
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Related CVEs(same vendor + same CWE)
Same vendor
10 shownmsrc · redhat
Same CWE
10 shownCWE-770
- CVE-2018-20033EG 9.8CRITICAL
- CVE-2019-11479NVD 7.5EG 9.0EPSS 100%HIGH
- CVE-2019-11478NVD 5.3EG 9.0EPSS 100%MEDIUM
- CVE-2019-10088EG 8.8EPSS 91%HIGH
- CVE-2018-15462EG 8.6HIGH
- CVE-2018-15460EG 8.6HIGH
- CVE-2018-0137EG 8.6HIGH
- CVE-2008-5180NVD 5.3EG 7.9EPSS 99%MEDIUM
- CVE-2019-10094EG 7.8HIGH
- CVE-2018-16865EG 7.8HIGH
Frequently asked(5)
What is CVE-2019-14834?
When was CVE-2019-14834 disclosed?
Is CVE-2019-14834 actively exploited?
What is the CVSS score of CVE-2019-14834?
How do I remediate CVE-2019-14834?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2019-14834
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