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VulnerabilityPublished

CVE-2026-34550: InternationalColorConsortium iccDEV · Incorrect Conversion Between Numeric Types

Affects InternationalColorConsortium iccDEVSource CVE Database V5

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Not known to be exploited · CVSS 6.2 Medium : upgrade to 2.3.1.6 when convenient.

Data as of 29 Oct 2026, 19:04 UTC

CVSS 3.1 base score
6.2Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 5% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 2.3.1.6
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 31 Mar 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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 29 Oct 2026.

What to do

Upgrade iccDEV and internationalcolorconsortium/iccDEV to 2.3.1.6.

Affected software

ProductAffectedFixed in
InternationalColorConsortiumiccDEVAffected
  • <2.3.1.6
Fixed in
  • 2.3.1.6
GitHubinternationalcolorconsortium/iccDEVpkg:github/internationalcolorconsortium/iccDEVOther threatsAffected
  • <2.3.1.6
Fixed in
  • 2.3.1.6

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

To mitigate CVE-2026-34550, organizations should upgrade iccDEV to version 2.3.1.6 or later, where the implicit conversion issue has been fixed. For environments where immediate upgrading is not feasible, code auditing and patching the affected IccProfLib/IccIO.cpp source to properly handle signed-to-unsigned conversions is recommended. Implement input validation to ensure that negative values are not passed to functions expecting size_t parameters. Additionally, sandboxing or restricting access to systems processing untrusted ICC profiles can reduce risk by limiting local exploitation opportunities. Monitoring application logs for crashes or unusual behavior related to ICC profile processing can help detect exploitation attempts. Finally, incorporating fuzz testing focused on numeric conversions in ICC profile handling code can proactively identify similar issues in future versions.

Description

iccDEV provides a set of libraries and tools for working with ICC color management profiles. Prior to version 2.3.1.6, there is an Undefined Behavior (UB) condition in IccProfLib/IccIO.cpp caused by an implicit conversion from a negative signed integer to size_t (unsigned), which changes the value. This issue has been patched in version 2.3.1.6.

References

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