CVE-2025-63339
Acrobat Reader vulnerability - Citrix
High
CVSS Score: 8.8
Published: 2026-02-19
Description
A buffer overflow vulnerability in Citrix Acrobat Reader allows attackers to access sensitive information. This affects versions prior to 19.55.6.
Affected Systems
| Vendor | Citrix |
| Product | Acrobat Reader |
| Affected Versions | < 15.8 |
| CWE ID | CWE-89 |
Mitigation
As a workaround, use Web Application Firewall until a patch is available.
Fix Instructions
1. Update Acrobat Reader to the latest version
2. Apply vendor patch when available
3. Implement network segmentation
4. Monitor for exploitation attempts
References
Risk Assessment
CVSS: 8.8/10
| Exploit Available | Yes |
| Patch Available | Yes |
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