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No exploitation reportedFix available

CVE-2021-23215

No exploitation reported by the sources we read.

  • Published2021-06-08
  • Fixed in3.0.1
  • WeaknessCWE-190 · CWE-400

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

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

Timeline

dates in UTC
  1. 2021-06-0812:15CVE publishedNVD

Versions per branch

NVD
Openexr
BranchAffectedFixed in
3.0< 3.0.13.0.1
Debian debian linux
BranchAffectedFixed in
9.0= 9.0no fix published
10.0= 10.0no fix published
11.0= 11.0no fix published
Fedoraproject fedora
BranchAffectedFixed in
33.x= 33no 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

  • openexrUbuntu:Pro:22.04:LTSall versions · fixed in 2.5.7-1ubuntu0.1~esm1
  • openexrUbuntu:Pro:20.04:LTSall versions · fixed in 2.3.0-6ubuntu0.5+esm1
  • openexrUbuntu:Pro:16.04:LTSall versions · fixed in 2.2.0-10ubuntu2.6+esm1
  • openexrUbuntu:18.04:LTSall versions · fixed in 2.2.0-11.1ubuntu1.7
  • openexrSUSE:Linux Enterprise Module for Desktop Applications 15 SP3all versions · fixed in 2.2.1-3.27.1
  • openexrSUSE:Linux Enterprise Module for Desktop Applications 15 SP2all versions · fixed in 2.2.1-3.27.1
  • openexropenSUSE:Leap 15.2all versions · fixed in 2.2.1-lp152.7.14.1
  • openexrMageia:8all versions · fixed in 2.5.7-1.mga8

20 more package ranges on OSV.dev

Full record on NVD

Fix

  1. Update Openexr to 3.0.1

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

  • NVDCVSS 3.15.5read 2026-10-23
  • NVDCVSS 2.04.3read 2026-10-23
  • CNAweakness (CWE)CWE-400known since 2026-10-23
  • NVDweakness (CWE)CWE-190read 2026-10-23
  • FIRST EPSSEPSS score1.1 %2026-11-08
  • OSVaffected packages—
  • GitHub Advisoriesadvisory—

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
2021-06-08
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-4463-879q-57jx

Frequently asked questions

What is CVE-2021-23215?

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

Is CVE-2021-23215 actively exploited?

Active exploitation of CVE-2021-23215 has not been confirmed. Its EPSS score was 1.1% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-23215?

CVE-2021-23215 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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