Security readout for executives and security teams
Plain-English summary
CVE-2026-21502 is a crash vulnerability in iccDEV before 2.3.1.2. A malformed XML tag can trigger a NULL pointer dereference, causing affected tools or applications to stop working. The published impact is availability only; no data theft or tampering is indicated.
Executive priority
Treat as a targeted availability risk for systems processing color profiles. Prioritize remediation where iccDEV is used in production automation, customer-upload workflows, or business-critical media processing. This is not currently an emergency based on public evidence.
Technical view
iccDEV’s XML tag parser can dereference a NULL pointer before version 2.3.1.2. The CVSS 3.1 vector is AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H, indicating local interaction with a crafted file or input and high availability impact. Related CWEs include improper input handling, unchecked return values, and NULL pointer dereference.
Likely exposure
Organizations are exposed if they use iccDEV libraries or tools below 2.3.1.2, especially in workflows that parse ICC profile XML tags from users, partners, or automated content pipelines.
Exploitation context
Sources do not report active exploitation, and the CVE is not listed as KEV. Exploitation requires local attack conditions and user interaction per CVSS. The likely result is application crash or service disruption, not confidentiality or integrity compromise.
Researcher notes
The advisory ties the issue to the XML tag parser and patches it in 2.3.1.2. The public record references issue 368, pull request 407, and two commits. Review those changes for root-cause analysis, but avoid assuming broader affected products beyond iccDEV.
Mitigation direction
- Upgrade iccDEV to version 2.3.1.2 or later.
- Identify applications or pipelines that bundle or depend on iccDEV.
- Restrict untrusted ICC/XML profile processing until updated.
- Monitor the vendor advisory for any additional guidance.
Validation and detection
- Inventory installed iccDEV versions and embedded copies.
- Confirm affected systems are below version 2.3.1.2.
- Review dependency manifests and build artifacts for iccDEV usage.
- After updating, verify deployed binaries report or include the patched version.
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-252: 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-476: 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-690: 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 lookupCVE-2026-21502 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
- Medium
- CVSS
- 5.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/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:N/I:N/A:H1.83.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.5MediumVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/InternationalColorConsortium/iccDEV/security/advisories/GHSA-67r8-q3mh-42j6CVE reference · x_refsource_CONFIRM
- https://github.com/InternationalColorConsortium/iccDEV/issues/368CVE reference · x_refsource_MISC
- https://github.com/InternationalColorConsortium/iccDEV/pull/407CVE reference · x_refsource_MISC
- https://github.com/InternationalColorConsortium/iccDEV/commit/d04c236775e89a029f93efcc242fdb1fbc245a1cCVE reference · x_refsource_MISC
- https://github.com/InternationalColorConsortium/iccDEV/commit/d9e42a1fb2606e25e498eb94f34f6da89f522e35CVE 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.