CVE-2019-14493
NULL Pointer Dereference in OpenCV.
An issue was discovered in OpenCV before 4.1.1. There is a NULL pointer dereference in the function cv::XMLParser::parse at modules/core/src/persistence.cpp.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
7.5
An issue was discovered in OpenCV before 4.1.1. There is a NULL pointer dereference in the function cv::XMLParser::parse at modules/core/src/persistence.cpp.
- Record
CVE-2019-14493- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-476
- Updated
- 2026-11-02
CVE List No score
An issue was discovered in OpenCV before 4.1.1. There is a NULL pointer dereference in the function cv::XMLParser::parse at modules/core/src/persistence.cpp.
- Record
CVE-2019-14493- Updated
- 2026-11-02
EUVDEUVD-2021-2144 No score
An issue was discovered in OpenCV before 4.1.1. There is a NULL pointer dereference in the function cv::XMLParser::parse at modules/core/src/persistence.cpp.
- Record
EUVD-2021-2144- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-3448-vrgh-85xr
7.5
NULL Pointer Dereference in OpenCV.
An issue was discovered in OpenCV before 4.1.1 (OpenCV-Python before 4.1.1.26). There is a NULL pointer dereference in the function cv::XMLParser::parse at modules/core/src/persistence.cpp.
- Record
GHSA-3448-vrgh-85xr- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-476
- Updated
- 2026-11-02
OSV
7.5
An issue was discovered in OpenCV before 4.1.1. There is a NULL pointer dereference in the function cv::XMLParser::parse at modules/core/src/persistence.cpp.
- Record
CVE-2019-14493- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2019-14493
7.5
An issue was discovered in OpenCV before 4.1.1. There is a NULL pointer dereference in the function cv::XMLParser::parse at modules/core/src/persistence.cpp.
- Record
DEBIAN-CVE-2019-14493- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
Show 8 moreShow less
OSVGHSA-3448-vrgh-85xr
7.5
NULL Pointer Dereference in OpenCV.
An issue was discovered in OpenCV before 4.1.1 (OpenCV-Python before 4.1.1.26). There is a NULL pointer dereference in the function cv::XMLParser::parse at modules/core/src/persistence.cpp.
- Record
GHSA-3448-vrgh-85xr- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-476
- Updated
- 2026-11-02
OSVPYSEC-2026-2795
7.5
NULL Pointer Dereference in OpenCV.
An issue was discovered in OpenCV before 4.1.1 (OpenCV-Python before 4.1.1.26). There is a NULL pointer dereference in the function cv::XMLParser::parse at modules/core/src/persistence.cpp.
- Record
PYSEC-2026-2795- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVPYSEC-2026-2806
7.5
NULL Pointer Dereference in OpenCV.
An issue was discovered in OpenCV before 4.1.1 (OpenCV-Python before 4.1.1.26). There is a NULL pointer dereference in the function cv::XMLParser::parse at modules/core/src/persistence.cpp.
- Record
PYSEC-2026-2806- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVPYSEC-2026-2834
7.5
NULL Pointer Dereference in OpenCV.
An issue was discovered in OpenCV before 4.1.1 (OpenCV-Python before 4.1.1.26). There is a NULL pointer dereference in the function cv::XMLParser::parse at modules/core/src/persistence.cpp.
- Record
PYSEC-2026-2834- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVPYSEC-2026-718
7.5
NULL Pointer Dereference in OpenCV.
An issue was discovered in OpenCV before 4.1.1 (OpenCV-Python before 4.1.1.26). There is a NULL pointer dereference in the function cv::XMLParser::parse at modules/core/src/persistence.cpp.
- Record
PYSEC-2026-718- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2019-14493
7.5
An issue was discovered in OpenCV before 4.1.1. There is a NULL pointer dereference in the function cv::XMLParser::parse at modules/core/src/persistence.cpp.
- Record
UBUNTU-CVE-2019-14493- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUSN-4818-1 No score
opencv vulnerabilities
It was discovered that OpenCV did not properly manage certain objects, leading to a divide-by-zero. If a user were tricked into loading a specially crafted file, a remote attacker could potentially use this issue to cause a denial of service or possibly execute arbitrary code. (CVE-2019-15939)
It was discovered that OpenCV did not properly manage certain files, leading to an out of bounds read. If a user were tricked into loading a specially crafted file, a remote attacker could potentially use this issue to make OpenCV crash, resulting in a denial of service. This issue was only fixed in Ubuntu 18.04 ESM. (CVE-2019-14491, CVE-2019-14492)
It was discovered that OpenCV did not properly manage certain XML data, leading to a NULL pointer dereference. If a user were tricked into loading a specially crafted file, a remote attacker could potentially use this issue to make OpenCV crash, resulting in a denial of service. This issue was only fixed in Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. (CVE-2019-14493)
It was discovered that OpenCV did not properly manage certain files, leading to a heap-based buffer overflow. If a user were tricked into loading a specially crafted file, a remote attacker could potentially use this issue to cause a denial of service or possibly execute arbitrary code. This issue only affected Ubuntu 18.04 ESM. (CVE-2017-18009)
- Record
USN-4818-1- Updated
- 2026-11-02
OSVUSN-7247-1 No score
opencv vulnerabilities
It was discovered that OpenCV did not properly manage certain XML data, leading to a NULL pointer dereference. If a user were tricked into loading a specially crafted file, a remote attacker could possibly use this issue to make OpenCV crash, resulting in a denial of service. This issue only affected Ubuntu 18.04 LTS. (CVE-2019-14493)
It was discovered that OpenCV may perform out-of-bounds reads in certain situations. An attacker could possibly use this issue to cause OpenCV to crash, resulting in a denial of service, or the execution of arbitrary code. This issue only affected Ubuntu 18.04 LTS. (CVE-2019-16249, CVE-2019-19624)
It was discovered that the QR code module of OpenCV incorrectly processed certain maliciously crafted QR codes. A remote attacker could possibly use this issue to cause OpenCV to crash, resulting in a denial of service. This issue only affected Ubuntu 22.04 LTS. (CVE-2023-2617, CVE-2023-2618)
- Record
USN-7247-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
opencv-pythonPyPI |
through 4.1.0.25 | 4.1.1.26 |
opencv-python-headlessPyPI |
through 4.1.0.25 | 4.1.1.26 |
opencv-contrib-pythonPyPI |
through 4.1.0.25 | 4.1.1.26 |
opencv-contrib-python-headlessPyPI |
through 4.1.0.25 | 4.1.1.26 |
opencvDebian:12 |
before 4.1.2+dfsg-3 | 4.1.2+dfsg-3 |
opencvDebian:13 |
before 4.1.2+dfsg-3 | 4.1.2+dfsg-3 |
opencvDebian:14 |
before 4.1.2+dfsg-3 | 4.1.2+dfsg-3 |
opencvDebian:9 |
before 2.4.9.1+dfsg1-2+deb9u1, plus listed versions 2.4.9.1+dfsg1-2 |
2.4.9.1+dfsg1-2+deb9u1 |
opencv-pythonPyPI |
before 4.1.1.26, plus listed versions 3.4.0.143.4.1.153.4.10.353.4.10.373.4.11.39 Show 25 moreShow less3.4.11.413.4.11.433.4.11.453.4.13.473.4.14.513.4.14.533.4.15.553.4.16.573.4.16.593.4.17.613.4.17.633.4.18.653.4.2.173.4.3.183.4.4.193.4.5.203.4.6.273.4.7.283.4.8.293.4.9.313.4.9.334.0.0.214.0.1.234.0.1.244.1.0.25 |
4.1.1.26 |
opencv-python-headlessPyPI |
before 4.1.1.26, plus listed versions 3.4.10.373.4.11.393.4.11.413.4.11.433.4.11.45 Show 19 moreShow less3.4.13.473.4.14.513.4.14.533.4.15.553.4.16.573.4.16.593.4.17.613.4.17.633.4.18.653.4.3.183.4.4.193.4.5.203.4.6.273.4.7.283.4.8.293.4.9.334.0.0.214.0.1.244.1.0.25 |
4.1.1.26 |
Show 9 moreShow less
| Package | Affected | Fixed |
|---|---|---|
opencv-contrib-pythonPyPI |
before 4.1.1.26, plus listed versions 3.4.10.353.4.10.373.4.11.393.4.11.413.4.11.43 Show 23 moreShow less3.4.11.453.4.13.473.4.14.513.4.14.533.4.15.553.4.16.573.4.16.593.4.17.613.4.17.633.4.18.653.4.2.173.4.3.183.4.4.193.4.5.203.4.6.273.4.7.283.4.8.293.4.9.313.4.9.334.0.0.214.0.1.234.0.1.244.1.0.25 |
4.1.1.26 |
opencv-contrib-python-headlessPyPI |
before 4.1.1.26, plus listed versions 3.4.0.143.4.10.373.4.11.413.4.11.433.4.11.45 Show 21 moreShow less3.4.13.473.4.14.513.4.14.533.4.15.553.4.16.573.4.16.593.4.17.613.4.17.633.4.18.653.4.2.173.4.3.183.4.4.193.4.5.203.4.6.273.4.7.283.4.8.293.4.9.334.0.0.214.0.1.234.0.1.244.1.0.25 |
4.1.1.26 |
opencv-pythonPyPI |
before 4.1.1.26, plus listed versions 3.4.0.143.4.1.153.4.10.353.4.10.373.4.11.39 Show 26 moreShow less3.4.11.413.4.11.433.4.11.453.4.13.473.4.14.513.4.14.533.4.15.553.4.16.573.4.16.593.4.17.613.4.17.633.4.18.653.4.2.163.4.2.173.4.3.183.4.4.193.4.5.203.4.6.273.4.7.283.4.8.293.4.9.313.4.9.334.0.0.214.0.1.234.0.1.244.1.0.25 |
4.1.1.26 |
opencv-contrib-python-headlessPyPI |
before 4.1.1.26, plus listed versions 3.4.0.143.4.1.153.4.10.373.4.11.393.4.11.41 Show 23 moreShow less3.4.11.433.4.11.453.4.13.473.4.14.513.4.14.533.4.15.553.4.16.573.4.16.593.4.17.613.4.17.633.4.18.653.4.2.173.4.3.183.4.4.193.4.5.203.4.6.273.4.7.283.4.8.293.4.9.334.0.0.214.0.1.234.0.1.244.1.0.25 |
4.1.1.26 |
opencvUbuntu:Pro:14.04:LTS |
before 2.4.8+dfsg1-2ubuntu1.2+esm1, plus listed versions 2.4.5+dfsg-0ubuntu42.4.5+dfsg-0ubuntu52.4.6.1+dfsg-2ubuntu22.4.6.1+dfsg-2ubuntu32.4.6.1+dfsg-2ubuntu4 Show 4 moreShow less2.4.6.1+dfsg-2ubuntu52.4.8+dfsg-1ubuntu12.4.8+dfsg1-2ubuntu12.4.8+dfsg1-2ubuntu1.2 |
2.4.8+dfsg1-2ubuntu1.2+esm1 |
opencvUbuntu:Pro:16.04:LTS |
before 2.4.9.1+dfsg-1.5ubuntu1.1+esm1, plus listed versions 2.4.9+dfsg-1ubuntu62.4.9.1+dfsg-1.2ubuntu12.4.9.1+dfsg-1.3ubuntu12.4.9.1+dfsg-1.5ubuntu12.4.9.1+dfsg-1.5ubuntu1.1 |
2.4.9.1+dfsg-1.5ubuntu1.1+esm1 |
opencvUbuntu:Pro:18.04:LTS |
before 3.2.0+dfsg-4ubuntu0.1+esm4, plus listed versions 3.1.0+dfsg1-1~exp1ubuntu33.2.0+dfsg-33.2.0+dfsg-43.2.0+dfsg-4build13.2.0+dfsg-4build23.2.0+dfsg-4ubuntu0.13.2.0+dfsg-4ubuntu0.1+esm23.2.0+dfsg-4ubuntu0.1+esm3 |
3.2.0+dfsg-4ubuntu0.1+esm4 |
opencvUbuntu:Pro:18.04:LTS |
before 3.2.0+dfsg-4ubuntu0.1+esm3, plus listed versions 3.1.0+dfsg1-1~exp1ubuntu33.2.0+dfsg-33.2.0+dfsg-43.2.0+dfsg-4build13.2.0+dfsg-4build23.2.0+dfsg-4ubuntu0.13.2.0+dfsg-4ubuntu0.1+esm2 |
3.2.0+dfsg-4ubuntu0.1+esm3 |
opencvUbuntu:Pro:22.04:LTS |
before 4.5.4+dfsg-9ubuntu4+esm1, plus listed versions 4.5.3+dfsg-1ubuntu14.5.4+dfsg-9ubuntu24.5.4+dfsg-9ubuntu4 |
4.5.4+dfsg-9ubuntu4+esm1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2019-14493 is a high vulnerability (CVSS 7.5) in Opencv, published August 1, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.31%, the 88th percentile. Fixed in opencv-python 4.1.1.26.
References
github.com/opencv/opencv/compare/371bba8...ddbd10c
github.com/opencv/opencv/issues/15127
lists.debian.org/debian-lts-announce/2021/10/msg00028.html
nvd.nist.gov/vuln/detail/CVE-2019-14493
github.com/advisories/GHSA-3448-vrgh-85xr
security-tracker.debian.org/tracker/CVE-2019-14493
Show 17 moreShow less
github.com/opencv/opencv-python
pypi.org/project/opencv-contrib-python
pypi.org/project/opencv-python
pypi.org/project/opencv-python-headless
pypi.org/project/opencv-contrib-python-headless
ubuntu.com/security/CVE-2019-14493
ubuntu.com/security/notices/USN-4818-1
cve.org/CVERecord?id=CVE-2019-14493
ubuntu.com/security/notices/USN-7247-1
ubuntu.com/security/CVE-2017-18009
ubuntu.com/security/CVE-2019-14491
ubuntu.com/security/CVE-2019-14492
ubuntu.com/security/CVE-2019-15939
ubuntu.com/security/CVE-2019-16249
ubuntu.com/security/CVE-2019-19624
ubuntu.com/security/CVE-2023-2617
ubuntu.com/security/CVE-2023-2618