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VULNERABILITY BRIEF 🟠 High Vulnerability

Heap Overflow in GIMP TIF Parser (CVE-2026-18307) Enables Remote Code Execution

GIMP (GNU Image Manipulation Program) contains a heap‑based buffer overflow in its TIF file parser (CVE‑2026‑18307) with a CVSS score of 7.8. An attacker can achieve arbitrary code execution when a user opens a malicious TIF file. For SOC 2‑compliant organizations, the flaw underscores the need for rapid vulnerability remediation and auditable evidence of patching.

Verisq™ Intelligence · 📅 July 30, 2026 · 📰 zerodayinitiative.com
🟠
Severity
High
VU
Type
Vulnerability
🎯
Confidence
High
🏢
Affected
2 sector(s)
✅
Actions
4 recommended
📰
Source
zerodayinitiative.com

Heap Overflow in GIMP TIF Parser (CVE-2026-18307) Enables Remote Code Execution

What It Is — GIMP’s TIF file parser contains a heap‑based buffer overflow that can be triggered by a crafted TIF image. An attacker who convinces a user to open the file can achieve arbitrary code execution. Exploitability — CVSS 7.8 (AV:L/AC:L/PR:N/UI:R); requires user interaction but no authentication. Affected Products — GIMP (all versions prior to the 2.10.34 patch).

Why It Matters for Compliance & Audit Readiness —

  • SOC 2’s Change Management (CC6.1) and Vulnerability Management (CC6.2) controls require timely identification, remediation, and documented evidence of patches.
  • Unpatched desktop tools used in production can become a control gap, exposing organizations to audit findings for “unaddressed known vulnerabilities.”
  • Continuous monitoring of software inventories and automated evidence collection (e.g., via Verisq’s Control Mapping) helps demonstrate due diligence to auditors and enterprise buyers.

Recommended Actions —

  1. Deploy the GIMP 2.10.34 (or later) update immediately.
  2. Verify the installed version across all endpoints via inventory tools.
  3. Map the fix to SOC 2 CC6.1/CC6.2 controls and capture patch‑level evidence for audit.
  4. Integrate the patch status into your continuous compliance dashboard to maintain a defensible audit trail.

Source: Zero Day Initiative advisory

📰 Original Source
http://www.zerodayinitiative.com/advisories/ZDI-26-460/ ↗

This Verisq Intelligence Brief is an independent analysis. Read the original reporting at the link above.

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