CVE-2025-48071: AcademySoftwareFoundation openexr · Heap-based Buffer Overflow
Affects AcademySoftwareFoundation openexrSource CVE Database V5
Not known to be exploited · CVSS 8.4 High · fixed in 3.3.3 : patch AcademySoftwareFoundation openexr soon.
Data as of 26 Oct 2026, 06:26 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 30% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 3.3.3
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 31 Jul 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.
What to do
AI-suggested
European organizations should immediately upgrade all instances of openexr to version 3.3.3 or later to ensure the vulnerability is patched. Where upgrading is not immediately feasible, implement strict input validation and sandboxing measures for any system processing EXR files, especially those obtained from untrusted or external sources. Employ file integrity verification and restrict file upload or ingestion workflows to trusted users and sources. Integrate runtime protections such as heap memory protection mechanisms (e.g., ASLR, DEP) and use application-level sandboxing to limit the impact of potential exploitation. Regularly audit and monitor logs for anomalous behavior related to EXR file processing. Additionally, coordinate with software vendors and pipeline tool providers to confirm that all dependent tools using openexr are updated accordingly. Conduct security awareness training for staff handling media files to recognize and report suspicious files. Finally, maintain an incident response plan tailored to media production environments to quickly address any exploitation attempts.
Description
OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. In versions 3.3.2 through 3.3.0, there is a heap-based buffer overflow during a write operation when decompressing ZIPS-packed deep scan-line EXR files with a maliciously forged chunk header. This is fixed in version 3.3.3.
References
- github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-h45x-qhg2-q375 (opens in a new tab)
- github.com/AcademySoftwareFoundation/openexr/commit/916cc729e24aa16b86d82813f6e136340ab2876f (opens in a new tab)
- github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.3.3 (opens in a new tab)