Every CVE Search/ Get API key

CVE-2019-14493

NULL Pointer Dereference in OpenCV.

7.5 HighFix available

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

3.31%Up 2.7 points since Apr 14, 2021
90%50%10%1%

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 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0
5.0 MediumAV: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 HighCVSS: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 HighCVSS: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 HighCVSS: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 HighCVSS: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 HighCVSS: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 HighCVSS: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 HighCVSS: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 HighCVSS: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 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 3.0
7.5 HighCVSS: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

Affected packages
PackageAffectedFixed
opencv-python
PyPI
through 4.1.0.25
4.1.1.26
opencv-python-headless
PyPI
through 4.1.0.25
4.1.1.26
opencv-contrib-python
PyPI
through 4.1.0.25
4.1.1.26
opencv-contrib-python-headless
PyPI
through 4.1.0.25
4.1.1.26
opencv
Debian:12
before 4.1.2+dfsg-3
4.1.2+dfsg-3
opencv
Debian:13
before 4.1.2+dfsg-3
4.1.2+dfsg-3
opencv
Debian:14
before 4.1.2+dfsg-3
4.1.2+dfsg-3
opencv
Debian: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-python
PyPI
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 less
3.4.11.413.4.11.433.4.11.453.4.13.473.4.14.513.4.14.533.4.15.553.4.16.573.4.16.593.4.17.613.4.17.633.4.18.653.4.2.173.4.3.183.4.4.193.4.5.203.4.6.273.4.7.283.4.8.293.4.9.313.4.9.334.0.0.214.0.1.234.0.1.244.1.0.25
4.1.1.26
opencv-python-headless
PyPI
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 less
3.4.13.473.4.14.513.4.14.533.4.15.553.4.16.573.4.16.593.4.17.613.4.17.633.4.18.653.4.3.183.4.4.193.4.5.203.4.6.273.4.7.283.4.8.293.4.9.334.0.0.214.0.1.244.1.0.25
4.1.1.26
Show 9 moreShow less
Affected packages
PackageAffectedFixed
opencv-contrib-python
PyPI
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 less
3.4.11.453.4.13.473.4.14.513.4.14.533.4.15.553.4.16.573.4.16.593.4.17.613.4.17.633.4.18.653.4.2.173.4.3.183.4.4.193.4.5.203.4.6.273.4.7.283.4.8.293.4.9.313.4.9.334.0.0.214.0.1.234.0.1.244.1.0.25
4.1.1.26
opencv-contrib-python-headless
PyPI
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 less
3.4.13.473.4.14.513.4.14.533.4.15.553.4.16.573.4.16.593.4.17.613.4.17.633.4.18.653.4.2.173.4.3.183.4.4.193.4.5.203.4.6.273.4.7.283.4.8.293.4.9.334.0.0.214.0.1.234.0.1.244.1.0.25
4.1.1.26
opencv-python
PyPI
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 less
3.4.11.413.4.11.433.4.11.453.4.13.473.4.14.513.4.14.533.4.15.553.4.16.573.4.16.593.4.17.613.4.17.633.4.18.653.4.2.163.4.2.173.4.3.183.4.4.193.4.5.203.4.6.273.4.7.283.4.8.293.4.9.313.4.9.334.0.0.214.0.1.234.0.1.244.1.0.25
4.1.1.26
opencv-contrib-python-headless
PyPI
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 less
3.4.11.433.4.11.453.4.13.473.4.14.513.4.14.533.4.15.553.4.16.573.4.16.593.4.17.613.4.17.633.4.18.653.4.2.173.4.3.183.4.4.193.4.5.203.4.6.273.4.7.283.4.8.293.4.9.334.0.0.214.0.1.234.0.1.244.1.0.25
4.1.1.26
opencv
Ubuntu: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 less
2.4.6.1+dfsg-2ubuntu52.4.8+dfsg-1ubuntu12.4.8+dfsg1-2ubuntu12.4.8+dfsg1-2ubuntu1.2
2.4.8+dfsg1-2ubuntu1.2+esm1
opencv
Ubuntu: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
opencv
Ubuntu: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
opencv
Ubuntu: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
opencv
Ubuntu: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

History
RecordedChangedSources
aliasesEUVD
first indexedCVE 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

Show 17 moreShow less
MoveEnter Open