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CVE-2021-3933
An integer overflow could occur when OpenEXR processes a crafted file on systems where size_t < 64 bits. This could cause an invalid…
Medium5.5EPSS 0.84%
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
An integer overflow could occur when OpenEXR processes a crafted file on systems where size_t < 64 bits. This could cause an invalid bytesPerLine and maxBytesPerLine value, which could lead to problems with application stability or lead to other attack paths.
Timeline
ID reserved
By redhat
- 5 months later
· 5 months later
Published
- 2 years later
· 2 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.84% · top 42% of all CVEs (7 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
Affected products
openexr
- affected OpenEXR 3.1.2
References (5)
- https://bugzilla.redhat.com/show_bug.cgi?id=2019783 (opens in a new tab)x_transferred
- FEDORA-2022-18e14f460c (opens in a new tab)vendor-advisoryx_transferred
- GLSA-202210-31 (opens in a new tab)vendor-advisoryx_transferred
- DSA-5299 (opens in a new tab)vendor-advisoryx_transferred
- [debian-lts-announce] 20221211 [SECURITY] [DLA 3236-1] openexr security update (opens in a new tab)mailing-listx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2021-3933)Record last updated .