CVE-2019-5063 in the critical feed json
Out-of-bounds Write in OpenCV
published 2020-01-03 6 y ago modified 2026-09-10 1 mo ago also GHSA-m6vm-8g8v-xfjh , PYSEC-2026-2801 , PYSEC-2026-2826 , PYSEC-2026-2840 , PYSEC-2026-724 , EUVD-2021-2226
- cvss
- 8.8
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 21.1%
- EPSS 21.1% chance of exploitation in 30 days, percentile 97%
- public exploits
- 0
- none known
Summary
An exploitable heap buffer overflow vulnerability exists in the data structure persistence functionality of OpenCV 4.1.0. A specially crafted XML file can cause a buffer overflow, resulting in multiple heap corruptions and potential code execution. An attacker can provide a specially crafted file to trigger this vulnerability.
Patch / fix
- oracle big_data_spatial_and_graph 2.0
- opencv Debian 14, Debian 13, Debian 12 4.2.0+dfsg-3
debian advisories DEBIAN-CVE-2019-5063
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2019-5063 updated cvss 8.8
opencv: Heap buffer overflow in persistence_xml.cpp while parsing crafted XML file
-
Red Hat Enterprise Linux 6 opencv, opencv-python Red Hat Enterprise Linux 7 opencv, opencv-core, opencv-python Red Hat Enterprise Linux 8 opencv, opencv-core, opencv-contrib, python3-opencvnot affected: vulnerable code not present
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
Exploit prediction
21.11% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- talosintelligence.com https://talosintelligence.com/vulnerability_reports/TALOS-2019-0852 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 8.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
| OSV | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| GitHub | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | opencv-python | <=4.1.0.25 |
no fix listed |
| pypi | opencv-python-headless | <=4.1.0.25 |
no fix listed |
| pypi | opencv-contrib-python | <=4.1.0.25 |
no fix listed |
| pypi | opencv-contrib-python-headless | <=4.1.0.25 |
no fix listed |
Affected products
- n/a OpenCV
Classification
References
-
oracle.com
/security-alerts/cpuApr2021.html
web, patch, third-party-advisory
-
oracle.com
//security-alerts/cpujul2021.html
web, patch, third-party-advisory
-
talosintelligence.com
/vulnerability_reports/TALOS-2019-0852
web, exploit, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2019-5063
advisory
-
github.com
/opencv/opencv/issues/16951
web
-
github.com
/opencv/opencv-python
package
-
github.com
/opencv/opencv-python/releases/tag/25
web
-
pypi.org
/project/opencv-python
package
-
github.com
/advisories/GHSA-m6vm-8g8v-xfjh
advisory
-
pypi.org
/project/opencv-python-headless
package
-
pypi.org
/project/opencv-contrib-python
package
-
pypi.org
/project/opencv-contrib-python-headless
package
Sources
- CVE List CVE-2019-5063
- GitHub Advisory GHSA-m6vm-8g8v-xfjh
- NVD CVE-2019-5063
- OSV PYSEC-2026-2826
- OSV PYSEC-2026-2840
- OSV PYSEC-2026-2801
- OSV PYSEC-2026-724
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.