CVE catalog

CVE-2021-26945

openexr: CVE-2021-26945

Severity: Medium · CVSS 5.5CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Published: Mar 17, 2021, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.67% · Oct 25, 2026

An integer overflow leading to a heap-buffer overflow was found in OpenEXR in versions before 3.0.1. An attacker could use this flaw to crash an application compiled with OpenEXR.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	openexr	sid	`3.4.16+ds-1`	fixed
Debian	openexr	forky	`3.4.16+ds-1`	fixed
Debian	openexr	trixie	`3.1.13-2`	fixed
Debian	openexr	bookworm	`3.1.5-5`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	openexr	source	sid	`3.1.5-2`	unimportant	Not reported	Not reported
Debian	openexr	source	forky	`3.1.5-2`	unimportant	Not reported	Not reported
Debian	openexr	source	trixie	`3.1.5-2`	unimportant	Not reported	Not reported
Debian	openexr	source	bookworm	`3.1.5-2`	unimportant	Not reported	Not reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[libopenexr-3-1-30]Fixed
Source package: [openexr]
Details (2)
- 3.1.5-5 · amd64 · bookworm
  Fixed · Fixed: 3.1.5-2
  dsa · openexr · debian · bookworm; dsa · openexr · debian · 12
- 3.1.5-5 · arm64 · bookworm
  Fixed · Fixed: 3.1.5-2
  dsa · openexr · debian · bookworm; dsa · openexr · debian · 12
[libopenexr-dev]Fixed
Source package: [openexr]
Details (2)
- 3.1.5-5 · amd64 · bookworm
  Fixed · Fixed: 3.1.5-2
  dsa · openexr · debian · bookworm; dsa · openexr · debian · 12
- 3.1.5-5 · arm64 · bookworm
  Fixed · Fixed: 3.1.5-2
  dsa · openexr · debian · bookworm; dsa · openexr · debian · 12
[libopenexr-doc]Fixed
Source package: [openexr]
Details (2)
- 3.1.5-5 · all · bookworm
  Fixed · Fixed: 3.1.5-2
  dsa · openexr · debian · bookworm; dsa · openexr · debian · 12
- 3.1.5-5 · all · bookworm
  Fixed · Fixed: 3.1.5-2
  dsa · openexr · debian · bookworm; dsa · openexr · debian · 12
[openexr]Fixed
Details (2)
- 3.1.5-5 · amd64 · bookworm
  Fixed · Fixed: 3.1.5-2
  dsa · openexr · debian · bookworm; dsa · openexr · debian · 12
- 3.1.5-5 · arm64 · bookworm
  Fixed · Fixed: 3.1.5-2
  dsa · openexr · debian · bookworm; dsa · openexr · debian · 12

[Debian 13 (Trixie)]

[libopenexr-3-1-30]Fixed
Source package: [openexr]
Details (2)
- 3.1.13-2 · amd64 · trixie
  Fixed · Fixed: 3.1.5-2
  dsa · openexr · debian · 13
- 3.1.13-2 · arm64 · trixie
  Fixed · Fixed: 3.1.5-2
  dsa · openexr · debian · 13
[libopenexr-dev]Fixed
Source package: [openexr]
Details (2)
- 3.1.13-2 · amd64 · trixie
  Fixed · Fixed: 3.1.5-2
  dsa · openexr · debian · 13
- 3.1.13-2 · arm64 · trixie
  Fixed · Fixed: 3.1.5-2
  dsa · openexr · debian · 13
[libopenexr-doc]Fixed
Source package: [openexr]
Details (2)
- 3.1.13-2 · all · trixie
  Fixed · Fixed: 3.1.5-2
  dsa · openexr · debian · 13
- 3.1.13-2 · all · trixie
  Fixed · Fixed: 3.1.5-2
  dsa · openexr · debian · 13
[openexr]Fixed
Details (2)
- 3.1.13-2 · amd64 · trixie
  Fixed · Fixed: 3.1.5-2
  dsa · openexr · debian · 13
- 3.1.13-2 · arm64 · trixie
  Fixed · Fixed: 3.1.5-2
  dsa · openexr · debian · 13

Observed: Oct 23, 2026, 5:55:20 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]