CVE-2026-34588
Essential information
- Published
- 06/04/2026 16:16
- Modified
- 07/04/2026 19:01
- Author
- —
- Creator
- —
- CVSS
- 8.6 HIGH (v3) 8.6 HIGH (v4.0)
- CISA KEV
- No
- CWE
- —
- CVSS vector
-
—
—
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS metrics
- Access vector
- —
- Access complexity
- —
- Authentication
- —
- Confidentiality impact
- —
- Integrity impact
- —
- Availability impact
- —
- Exploitability
- —
- Remediation level
- —
- Report confidence
- —
- Temporal score
- —
- Attack vector
- —
- Attack complexity
- —
- Privileges required
- —
- User interaction
- —
- Scope
- —
- Confidentiality impact
- —
- Integrity impact
- —
- Availability impact
- —
- Exploit code maturity
- —
- Remediation level
- —
- Report confidence
- —
- Temporal score
- —
- Attack vector
- LOCAL
- Attack complexity
- LOW
- Attack requirements
- NONE
- Privileges required
- NONE
- User interaction
- NONE
- Confidentiality (V)
- HIGH
- Confidentiality (S)
- NONE
- Integrity (V)
- HIGH
- Integrity (S)
- NONE
- Availability (V)
- HIGH
- Availability (S)
- NONE
- Exploit maturity
- NOT_DEFINED
Description
OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From 3.1.0 to before 3.2.7, 3.3.9, and 3.4.9, internal_exr_undo_piz() advances the working wavelet pointer with signed 32-bit arithmetic. Because nx, ny, and wcount are int, a crafted EXR file can make this product overflow and wrap. The next channel then decodes from an incorrect address. The wavelet decode path operates in place, so this yields both out-of-bounds reads and out-of-bounds writes. This vulnerability is fixed in 3.2.7, 3.3.9, and 3.4.9.
NVD status
- Status
- Analyzed — CVE has been recently published to the CVE List and has been received by the NVD.
- Source
- [email protected]
- NVD
- View on NVD
Affected products (CPE)
| Product | CPE |
|---|---|
| openexr / openexr | cpe:2.3:a:openexr:openexr:*:*:*:*:*:*:*:* |
| openexr / openexr | cpe:2.3:a:openexr:openexr:*:*:*:*:*:*:*:* |
| openexr / openexr | cpe:2.3:a:openexr:openexr:*:*:*:*:*:*:*:* |