CVE-2026-34537

iccDEV: UB in CIccOpDefEnvVar::Exec()

MEDIUM
5.5
CVSS Score
Published: March 31, 2026 at 10:00 PM UTC
Updated: June 17, 2026 at 10:39 AM UTC
2 products affected across 2 vendorsIccdeviccDEV

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
PoC

Description

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 Undefined Behavior (UB) in CIccOpDefEnvVar::Exec() due to invalid enum values being loaded for icSigCmmEnvVar. The issue is observable under UBSan as a “load of value … not a valid value for type icSigCmmEnvVar”, indicating an invalid enum/type value being consumed during ICC profile processing. This issue has been patched in version 2.3.1.6.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 2.3.1.6
v < 2.3.1.6
Affected range stops below 2.3.1.6, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (3)

x_refsource_MISCExploitIssue Tracking
Source: cverecord
https://github.com/InternationalColorConsortium/iccDEV/issues/670
x_refsource_MISCIssue TrackingPatch
Source: cverecord
https://github.com/InternationalColorConsortium/iccDEV/pull/685

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-758

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