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Fencer Intel
high 7.5

CVE-2017-18009 json

Out-of-bounds Read in OpenCV

published 2018-01-01 8 y ago modified 2026-09-10 1 mo ago also GHSA-83rh-hx5x-q9p5 , PYSEC-2026-2810 , PYSEC-2026-702 , EUVD-2021-2175

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.5%
EPSS 2.5% chance of exploitation in 30 days, percentile 84%
public exploits
0
none known

Summary

In OpenCV 3.3.1, a heap-based buffer over-read exists in the function cv::HdrDecoder::checkSignature in modules/imgcodecs/src/grfmt_hdr.cpp.

Patch / fix

  • pypi opencv-python 3.4.1.15
  • pypi opencv-contrib-python 3.4.1.15
  • opencv Debian 14, Debian 13, Debian 12 4.1.2+dfsg-3

debian advisories DEBIAN-CVE-2017-18009

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-2017-18009 updated cvss 4.4

opencv: heap-based buffer over-read in function cv::HdrDecoder::checkSignature in modules/imgcodecs/src/grfmt_hdr.cpp

  • 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-opencv
    not 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

2.47% chance of exploitation in the next 30 days, higher than 84% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P
OSV 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
GitHub 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
pypi opencv-python
<3.4.1.15
3.4.1.15
pypi opencv-contrib-python
<3.4.1.15
3.4.1.15

Classification

Weakness

References

Sources

Fencer Intel 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.