5.5

CVE-2026-59985: academysoftwarefoundation openexr Out-of-bounds Read

CVSS: 5.5v3.1MediumDeferred
AliasesUBUNTU-CVE-2026-59985DEBIAN-CVE-2026-59985
Published 25-08-2026Last modified 25-08-2026
Open JSON

Vulnerability summary

CVE-2026-59985 is a medium (CVSS 5.5) Out-of-bounds Read vulnerability in academysoftwarefoundation openexr. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 6.2% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.17%
0%100%
Low · -0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 4 · Related 4
OPENSUSE-SU-2026:11612-1OPENSUSE-SU-2026:12184-1OPENSUSE-SU-2026:21737-1SUSE-SU-2026:23604-1

Timeline

  1. 25-08-2026
    PublishedVulnerability first disclosed.
  2. 25-08-2026
    Last modifiedVulnerability information updated.

Description

OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. OpenEXR versions 3.2.0 through 3.2.10, 3.3.0 through 3.3.12, and 3.4.0 through 3.4.13 are vulnerable on ILP32 builds to a heap out-of-bounds read. The issue occurs when a crafted RLE-compressed EXR causes the 64-bit unpacked size to truncate before allocation in OpenEXRCore decoding.c and unpack_32bit() reads beyond the resulting buffer, allowing denial of service. This issue is fixed in versions 3.2.11, 3.3.13, and 3.4.14.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.17%

Chance of exploitation in the next 30 days

Percentile

6%

Versus all other CVEs

30-day change

-0.01 pp

From 0.18% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.17%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Academysoftwarefoundation1 product
  • openexr≥ 3.2.0, < 3.2.11 | ≥ 3.3.0, < 3.3.13 | ≥ 3.4.0, < 3.4.14
Debian1 product
  • openexrAll versions (No fix recorded) | < 3.4.14-0.1
Ubuntu1 product
  • openexrAll versions (No fix recorded)

3 vendors · 3 products

References

10 links