CVE-2021-20296

low
Published — · Modified —
CVSS v3
CVSS v2
VIR risk
2.5

Description

A flaw was found in OpenEXR in versions before 3.0.0-beta. A crafted input file supplied by an attacker, that is processed by the Dwa decompression functionality of OpenEXR's IlmImf library, could cause a NULL pointer dereference. The highest threat from this vulnerability is to system availability.

Predictions

Exploit likelihood
20%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2021-20296

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2021-20296.html

OS impact

OSVersionStatusFixed in
arch archfixed2.5.4-1
suse slesaffected
debian debianbookwormfixed2.5.4-1
debian debianbullseyefixed2.5.4-1
debian debianforkyfixed2.5.4-1
debian debiansidfixed2.5.4-1
debian debiantrixiefixed2.5.4-1

References

Verify integrity in audit chain (admin only). AS-IS.