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No exploitation reportedFix available

CVE-2021-45942

No exploitation reported by the sources we read.

  • Published2022-01-01
  • Fixed in3.1.4
  • WeaknessCWE-787

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

OpenEXR 3.1.x before 3.1.4 has a heap-based buffer overflow in Imf_3_1::LineCompositeTask::execute (called from IlmThread_3_1::NullThreadPoolProvider::addTask and IlmThread_3_1::ThreadPool::addGlobalTask). NOTE: db217f2 may be inapplicable.

Timeline

dates in UTC
  1. 2022-01-0101:15CVE publishedNVD

Versions per branch

NVD
Openexr
BranchAffectedFixed in
3.1≥ 3.1.0, < 3.1.43.1.4
Fedoraproject fedora
BranchAffectedFixed in
34.x= 34no fix published
35.x= 35no fix published
36.x= 36no fix published
Debian debian linux
BranchAffectedFixed in
10.0= 10.0no fix published
11.0= 11.0no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • cobblerSUSE:Package Hub 15 SP3all versions · fixed in 3.1.2-bp153.2.3.1
  • cobbleropenSUSE:Leap 15.3all versions · fixed in 3.1.2-bp153.2.3.1
  • openexrUbuntu:Pro:24.04:LTSall versions · no fixed version listed
  • openexrUbuntu:Pro:22.04:LTSall versions · no fixed version listed
  • openexrUbuntu:Pro:20.04:LTSall versions · no fixed version listed
  • openexrUbuntu:Pro:18.04:LTSall versions · no fixed version listed
  • openexrUbuntu:Pro:16.04:LTSall versions · no fixed version listed
  • openexrUbuntu:26.10all versions · no fixed version listed

27 more package ranges on OSV.dev

Vendor advisories

  • CVE-2021-45942 Red Hat Product Security7 known affected

    OpenEXR: heap-based buffer overflow in Imf_3_1:LineCompositeTask:execute

    OpenEXR-devel as a component of Red Hat Enterprise Linux 8 · OpenEXR-libs as a component of Red Hat Enterprise Linux 8 · OpenEXR.src as a component of Red Hat Enterprise Linux 8 · +4 more

Full record on NVD

Fix

  1. Update Openexr to 3.1.4
  2. No fix planned, says the vendor Red Hat Product Security CVE-2021-45942 · 7 productsWill not fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Published
2022-01-01
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-68rw-m3hm-pqp8

Frequently asked questions

What is CVE-2021-45942?

OpenEXR 3.1.x before 3.1.4 has a heap-based buffer overflow in Imf_3_1::LineCompositeTask::execute (called from IlmThread_3_1::NullThreadPoolProvider::addTask and IlmThread_3_1::ThreadPool::addGlobalTask). NOTE: db217f2 may be inapplicable.

Is CVE-2021-45942 actively exploited?

Active exploitation of CVE-2021-45942 has not been confirmed. Its EPSS score was 1.8% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-45942?

CVE-2021-45942 has a CVSS v3 base score of 5.5 (MEDIUM severity), with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

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