What is CVE-2026-34534?

CVE-2026-34534 is a medium-severity vulnerability in Color Iccdev, classified under Heap-based Buffer Overflow. CVSS score: 6.2/10. Published 2026-03-31.

How severe is CVE-2026-34534?

Medium severity. CVSS v3 base score is 6.2 out of 10.

Buffer overflow in Color Iccdev

CVE-2026-34534

iccDEV provides a set of libraries and tools for working with ICC color management profiles. Prior to version 2.3.1.6, a crafted ICC profile can trigger a heap-buffer-overflow (HBO) in CIccMpeSpectralMatrix::Describe(). The issue is observable under AddressSanitizer as an out-of-bounds heap read when running iccDumpProfile on a malicious profile. This issue has been patched in version 2.3.1.6.

Vulnerability class: Buffer Overflow

Published 2026-03-31 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.002 (5.1th percentile), scored 2026-10-05.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 5th percentile — 5.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.000

Affected products

Color Iccdev
Internationalcolorconsortium Iccdev — versions < 2.3.1.6

Weakness classification (CWE)

CWE-122 — Heap-based Buffer Overflow

References

github.com/InternationalColorConsortium/iccDEV/security/advisories/GHSA-7x9w-g4… (Patch, Vendor Advisory)
github.com/InternationalColorConsortium/iccDEV/issues/665 (Issue Tracking)
github.com/InternationalColorConsortium/iccDEV/pull/682 (Patch, Issue Tracking)

Frequently asked questions

What is CVE-2026-34534?: CVE-2026-34534 is a medium-severity vulnerability in Color Iccdev, classified under Heap-based Buffer Overflow. CVSS score: 6.2/10. Published 2026-03-31.
How severe is CVE-2026-34534?: Medium severity. CVSS v3 base score is 6.2 out of 10.