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Fencer Vulns
medium 5.5

CVE-2020-15306 json

An issue was discovered in OpenEXR before v2.5.2.

published 2020-06-26 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-7303

cvss
5.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 40%
public exploits
0
none known

Summary

An issue was discovered in OpenEXR before v2.5.2. Invalid chunkCount attributes could cause a heap buffer overflow in getChunkOffsetTableSize() in IlmImf/ImfMisc.cpp.

Patch / fix

  • openexr openexr 2.5.2
  • openexr Debian 14, Debian 13, Debian 12 2.5.3-2

debian advisories DEBIAN-CVE-2020-15306

  • openexr Ubuntu 16.04 LTS 2.2.0-10ubuntu2.3
  • openexr Ubuntu 18.04 LTS 2.2.0-11.1ubuntu1.3
  • openexr Ubuntu 20.04 LTS 2.3.0-6ubuntu0.2

ubuntu advisories UBUNTU-CVE-2020-15306

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • openexr SLES for SAP 12 SP5, SLES 12 SP5, SLE Workstation Extension 12 SP5 +1 more 2.1.0-6.23.1
  • openexr SLE Module for Desktop Applications 15 SP2, SLE Module for Desktop Applications 15 SP1 2.2.1-3.18.1

suse advisories SUSE-SU-2020:1984-1SUSE-SU-2020:1931-1

  • openexr openSUSE Leap 15.2 2.2.1-lp152.7.5.1
  • openexr openSUSE Leap 15.1 2.2.1-lp151.4.12.1

opensuse advisories openSUSE-SU-2020:1015-1openSUSE-SU-2020:0970-1

  • openexr Alpine 3.12 2.4.1-r3
  • openexr Alpine 3.24, Alpine 3.23, Alpine 3.22 +9 more 2.5.2-r0

alpine advisories ALPINE-CVE-2020-15306

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

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-2020-15306 updated cvss 6.2

OpenEXR: Invalid chunkCount attributes could cause a heap buffer overflow in getChunkOffsetTableSize() in IlmImf/ImfMisc.cpp

  • Red Hat Enterprise Linux 8 OpenEXR, OpenEXR-libs, mingw-OpenEXR, mingw32-OpenEXR, mingw64-OpenEXR
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux 6 OpenEXR, OpenEXR-libs Red Hat Enterprise Linux 7 OpenEXR, OpenEXR-libs Red Hat Enterprise Linux 9 OpenEXR
    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

0.46% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 2.1 AV:L/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness

References

Sources

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.