Security readout for executives and security teams
Plain-English summary
CVE-2026-24856 affects iccDEV, a library for handling ICC color profiles. A malformed profile processed through XML parsing can trigger unsafe numeric conversion, potentially corrupting memory and enabling code execution. The issue is fixed in version 2.3.1.2. Exposure is highest where applications process user-supplied color profiles or files containing them.
Executive priority
Prioritize remediation for creative, imaging, print, document, and file-conversion workflows that accept external files. This is high severity because successful exploitation may allow code execution, but current sources do not show active exploitation. Patch during the next urgent maintenance window for exposed processing systems.
Technical view
iccDEV versions before 2.3.1.2 can hit undefined behavior when floating-point NaN values are converted to unsigned short integer types during ICC profile XML parsing. The advisory maps this to input validation and numeric conversion weaknesses. CVSS 3.1 is 7.8: local vector, low complexity, no privileges, user interaction required, with high confidentiality, integrity, and availability impact.
Likely exposure
Systems are exposed if they embed or use iccDEV before 2.3.1.2 and process ICC color profiles from users, partners, uploads, documents, images, or conversion pipelines. The source data indicates user interaction is required and the attack vector is local, not network-direct.
Exploitation context
The provided sources do not report active exploitation, and the CVE is not listed as KEV. Exploitation would require a vulnerable application to process a crafted ICC profile or related XML profile data. The public advisory states arbitrary code execution may be possible through memory structure corruption.
Researcher notes
Key indicators are iccDEV before 2.3.1.2, ICC profile XML parsing, NaN-to-unsigned-short conversion, and CWE-20, CWE-681, CWE-704. The fix is linked through PR 541 and commit 5e53a5d. Avoid assuming all image software is affected unless iccDEV usage is confirmed.
Mitigation direction
- Upgrade iccDEV to version 2.3.1.2 or later.
- Identify applications and services that bundle or link iccDEV.
- Restrict processing of untrusted ICC profiles until patched.
- Check vendor guidance for downstream products using iccDEV.
- Monitor the GitHub advisory and project issue for updates.
Validation and detection
- Confirm installed or bundled iccDEV version is 2.3.1.2 or later.
- Review software bills of materials for iccDEV dependencies.
- Trace file-processing workflows that accept ICC profiles or color-managed files.
- Verify patched builds include the referenced upstream fix.
- Document any systems that cannot be upgraded immediately.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-20: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCWE-681: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCWE-704: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-24856 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H1.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/InternationalColorConsortium/iccDEV/security/advisories/GHSA-w585-cv3v-c396CVE reference · x_refsource_CONFIRM
- https://github.com/InternationalColorConsortium/iccDEV/issues/532CVE reference · x_refsource_MISC
- https://github.com/InternationalColorConsortium/iccDEV/pull/541CVE reference · x_refsource_MISC
- https://github.com/InternationalColorConsortium/iccDEV/commit/5e53a5d25923b7794ba44e390e9b35d391f2b9c1CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.