An issue was discovered in OpenCV before 3.4.7 and 4.x before 4.1.1. There is an out of bounds read in the function cv::predictOrdered in modules/objdetect/src/cascadedetect.hpp, which leads to denial of service.
CVE-2019-14491
This high-severity CVE scores 8.2 under NVD CVSS v3. EPSS exploit probability: 2.6%, top 16% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 8.2
- EG Score
- 8.2(medium)
- EG Risk
- 42(Track)EG Risk 42/100SSVC: 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 computedSeverity82% × 45%Exploitation3% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 3%
- EPSS %ILE
- 84%
- KEV
- Not listed
Published
August 1, 2019
Last Modified
November 21, 2024
References (10)
- cve@mitrehttp://lists.opensuse.org/opensuse-security-announce/2019-12/msg00025.html
- cve@mitrehttps://github.com/opencv/opencv/compare/33b765d...4a7ca5a
- cve@mitrehttps://github.com/opencv/opencv/compare/371bba8...ddbd10c
- cve@mitrehttps://github.com/opencv/opencv/issues/15125
- cve@mitrehttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HPFLN6QAX6SUA4XR4NMKKXX26H3TYCVQ/
- af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00025.html
- af854a3a-2127-422b-91ae-364da2661108https://github.com/opencv/opencv/compare/33b765d...4a7ca5a
- af854a3a-2127-422b-91ae-364da2661108https://github.com/opencv/opencv/compare/371bba8...ddbd10c
- af854a3a-2127-422b-91ae-364da2661108https://github.com/opencv/opencv/issues/15125
- af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HPFLN6QAX6SUA4XR4NMKKXX26H3TYCVQ/
Patch Availability(1)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | libopencv-legacy-dev (2.4.9.1+dfsg-1.5ubuntu1.1+esm1) @ xenial | 2026-05-27 | ubuntu |
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.
Affected Packages
(8 across 5 ecosystems)
PyPI(4)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| opencv-contrib-python | 3.4.2.17 ... 4.1.0.25 (9 versions) | 4.1.1.26 | — |
| opencv-contrib-python-headless | 3.4.0.14 ... 4.1.0.25 (11 versions) | 4.1.1.26 | — |
| opencv-python | 3.4.0.14 ... 4.1.0.25 (12 versions) | 4.1.1.26 | — |
| opencv-python-headless | 3.4.3.18 ... 4.1.0.25 (7 versions) | 4.1.1.26 | — |
Debian:11(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| opencv | — | 4.1.2+dfsg-3 | — |
Debian:12(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| opencv | — | 4.1.2+dfsg-3 | — |
Debian:13(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| opencv | — | 4.1.2+dfsg-3 | — |
Debian:14(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| opencv | — | 4.1.2+dfsg-3 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
All Vendor Advisories
(1)
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 5× in last 7d / 25× 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.
Showing the most recent 100 of 123 total refreshes for this CVE.
- 2026-08-25 13:45 UTCEPSS rescore
- 2026-08-21 23:45 UTCEPSS rescore
- 2026-08-21 17:44 UTCOSV refresh
- 2026-08-20 22:51 UTCEPSS rescore
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- 2026-08-06 02:21 UTCOSV refresh
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- 2026-07-26 14:51 UTCEPSS rescore
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- 2026-07-23 01:40 UTCEG score recompute
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- 2026-07-20 10:34 UTCOSV refresh
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- 2026-07-04 06:28 UTCEPSS rescore
- 2026-07-03 05:36 UTCOSV refresh
- 2026-07-02 16:56 UTCEPSS rescore
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- 2026-06-14 21:13 UTCOSV refresh
- 2026-06-13 22:58 UTCEPSS rescore
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- 2026-06-06 13:45 UTCEPSS rescore
Frequently asked(5)
What is CVE-2019-14491?
When was CVE-2019-14491 disclosed?
Is CVE-2019-14491 actively exploited?
What is the CVSS score of CVE-2019-14491?
How do I remediate CVE-2019-14491?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2019-14491
Is Your Infrastructure Affected by CVE-2019-14491?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.