CVE-2021-3474

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

Description

There's a flaw in OpenEXR in versions before 3.0.0-beta. A crafted input file that is processed by OpenEXR could cause a shift overflow in the FastHufDecoder, potentially leading to problems with application 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-2021-3474

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2021-3474.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.