CVE-2026-47917: Acrobat Reader | Use After Free (CWE-416)
Acrobat Reader versions 24.001.30365, 26.001.21651 and earlier are affected by a Use After Free vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Remove
Remove
Acrobat Readerfrom your environment.Uninstall Acrobat Reader (affected versions include 24.001.30365, 26.001.21651 and earlier) from systems where it is not required, or replace with an alternative PDF viewer until a vendor-supplied fix is available.
- Compensating control
Prevent users from opening untrusted PDF files: block or filter PDF attachments at the email gateway and web/proxy, restrict downloads of PDFs from untrusted sites, and require that PDFs be opened only in isolated/sandboxed environments or VMs. This reduces risk because exploitation requires a victim to open a malicious file.
Event History
Frequently Asked Questions
What is the severity of CVE-2026-47917?
CVE-2026-47917 has a high severity score of 7.8.
What is the impact of CVE-2026-47917?
CVE-2026-47917 can result in arbitrary code execution in the context of the current user.
How do I fix CVE-2026-47917?
To fix CVE-2026-47917, update Adobe Acrobat Reader to the latest version available.
What versions of Adobe Acrobat Reader are affected by CVE-2026-47917?
Adobe Acrobat Reader versions 24.001.30365, 26.001.21651 and earlier are affected by CVE-2026-47917.
How is CVE-2026-47917 exploited?
CVE-2026-47917 requires user interaction, specifically that a victim must open a malicious file.