8.4

CVE-2026-42450: academysoftwarefoundation opencolorio Classic Buffer Overflow

CVSS: 8.4v4.0HighDeferred
AliasesUBUNTU-CVE-2026-42450DEBIAN-CVE-2026-42450openSUSE-SU-2026:10801-1
Published 24-06-2026Last modified 24-06-2026
Open JSON

Vulnerability summary

CVE-2026-42450 is a high (CVSS 8.4) Classic Buffer Overflow vulnerability in academysoftwarefoundation opencolorio. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 6.1% of scored vulnerabilities.

Overall risk
34/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.4/10
010
High · v4.0 (CVE.org)
EPSS score
0.17%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 24-06-2026
    PublishedVulnerability first disclosed.
  2. 24-06-2026
    Last modifiedVulnerability information updated.

Description

OpenColorIO is a color management framework for visual effects and animation. Prior to version 2.5.2, `FileFormatSpi3D.cpp:163` uses `sscanf` with `%s` into 64-byte stack buffers when parsing LUT data lines. Input comes from `lineBuffer[4096]`, so a crafted .spi3d file can overflow by ~4000 bytes on non-Windows. Version 2.5.2 fixes the issue.

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

0.00 pp

From 0.17% 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
Debian1 product
  • opencolorioAll versions (No fix recorded)
Opensuse1 product
  • OpenColorIO&distro=openSUSE Tumbleweed< 2.5.2-1.1
Ubuntu1 product
  • opencolorioAll versions (No fix recorded)

4 vendors · 4 products

References

6 links