CVE-2026-68515
Description
A flaw was found in OpenEXR. A remote attacker could exploit this vulnerability by providing specially crafted EXR image files to the exrmultiview utility. When processing these files, the utility can write beyond its allocated memory on the heap, leading to a heap out-of-bounds write. This could allow an attacker to achieve arbitrary code execution or cause a denial of service (DoS) on the affected system.
Statement
This is an Important vulnerability in the OpenEXR exrmultiview utility. Exploitation requires a local attacker to persuade a user to process specially crafted EXR image files. Successful attacks could result in a heap out-of-bounds write, potentially leading to arbitrary code execution or a denial of service on Red Hat systems. The requirement for user interaction and local access limits the overall risk, but the potential for system compromise warrants an Important rating.
Mitigation
To mitigate this issue, avoid processing untrusted or unverified EXR image files with the `exrmultiview` utility. Users should exercise caution when handling EXR files from unknown or suspicious sources. If possible, restrict the execution environment of `exrmultiview` through sandboxing mechanisms to limit potential impact.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 7.1 | N/A | 7.1 |
| Attack Vector | Local | N/A | Local |
| Attack Complexity | Low | N/A | Low |
| Privileges Required | None | N/A | None |
| User Interaction | Required | N/A | Required |
| Scope | Unchanged | N/A | Unchanged |
| Confidentiality | None | N/A | None |
| Integrity Impact | High | N/A | High |
| Availability Impact | High | N/A | High |
Vector
Red Hat: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
cve.org: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
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