Out-of-Bounds Read in Adobe Acrobat Reader DC (CVE-2026-79910) Enables Information Disclosure
What It Is — A buffer‑read error in the JPEG2000 parser of Adobe Acrobat Reader DC can allow a remote attacker who convinces a user to open a crafted file or visit a malicious page to read memory beyond the allocated buffer, exposing potentially sensitive data.
Exploitability — Requires user interaction; no public exploit code; CVSS 3.3 (Low‑moderate).
Affected Products — Adobe Acrobat Reader DC (all supported versions prior to the September 2026 security update).
Why It Matters for Trust & Control Assurance
- Timely patching of third‑party software satisfies a core control objective that maps to many frameworks (e.g., NIST CSF Identify‑Protect, ISO 27001 A.12.6).
- Recording remediation evidence creates a defensible audit trail that enterprise buyers increasingly demand.
- Continuous monitoring of vendor advisories shortens the window of exposure for information‑disclosure risks.
Recommended Actions
- Deploy Adobe’s September 2026 security update on every endpoint.
- Verify the installed version with automated inventory tools and log the remediation in your change‑management system.
- If patching cannot be completed immediately, disable JPEG2000 handling as a temporary mitigation.
- Update your vulnerability‑management dashboard to reflect the closed finding and retain the advisory as audit evidence.