Is CVE-2026-3778 actively exploited?

No active exploitation of CVE-2026-3778 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-3778 be exploited remotely?

No. CVE-2026-3778 requires local access to exploit.

What is the CVSS score of CVE-2026-3778?

CVE-2026-3778 has a CVSS score of 6.2 (MEDIUM).

HOME VULNERABILITIESCVE-2026-3778

MEDIUM

CVE-2026-3778

CWE-674Published: April 1, 2026· Updated: Apr 1, 2026

6.2

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:2.1th

Official Description

The application does not detect or guard against cyclic PDF object references while handling JavaScript in PDF. When pages and annotations are crafted that reference each other in a loop, passing the document to APIs (e.g., SOAP) that perform deep traversal can cause uncontrolled recursion, stack exhaustion, and application crashes.

NVD Source

Technical Analysis

CVE-2026-3778 requires local access, meaning attackers must already have a foothold on the target system.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 6.2.