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Fencer Vulns
medium 5.5

CVE-2020-11759 json

An issue was discovered in OpenEXR before 2.4.1.

published 2020-04-14 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-4101

cvss
5.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.7%
EPSS 1.7% chance of exploitation in 30 days, percentile 77%
public exploits
0
none known

Summary

An issue was discovered in OpenEXR before 2.4.1. Because of integer overflows in CompositeDeepScanLine::Data::handleDeepFrameBuffer and readSampleCountForLineBlock, an attacker can write to an out-of-bounds pointer.

Patch / fix

  • openexr openexr 2.4.1
  • apple icloud 7.20, 11.3
  • apple itunes 12.10.8
  • apple ipados 13.6
  • apple iphone_os 13.6
  • apple mac_os_x 10.13.6, 10.14.6, 10.15.6
  • apple tvos 13.4.8
  • apple watchos 6.2.8
  • openexr Debian 14, Debian 13, Debian 12 2.5.3-2

debian advisories DEBIAN-CVE-2020-11759

  • openexr Ubuntu 16.04 LTS 2.2.0-10ubuntu2.2
  • openexr Ubuntu 18.04 LTS 2.2.0-11.1ubuntu1.2
  • openexr Ubuntu 20.04 LTS 2.3.0-6ubuntu0.1

ubuntu advisories UBUNTU-CVE-2020-11759

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 Alpine 3.24, Alpine 3.23, Alpine 3.22 +7 more 2.4.1-r0

alpine advisories ALPINE-CVE-2020-11759

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-2020-11759 updated cvss 5.5

OpenEXR: out-of-bounds write due to integer overflows in CompositeDeepScanLine::Data::handleDeepFrameBuffer and readSampleCountForLineBlock

  • Red Hat Enterprise Linux 6 OpenEXR, OpenEXR-libs
    affected: no fix planned “Out of support scope”
  • 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 7 OpenEXR, OpenEXR-libs
    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

1.69% chance of exploitation in the next 30 days, higher than 77% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • bugs.chromium.org https://bugs.chromium.org/p/project-zero/issues/detail?id=1987 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-190 Integer Overflow or Wraparound

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.