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CVE-2026-3776

MEDIUMCVSS 5.5/10EPSS 0.10%

Last modified

CVE-2026-3776 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. The application does not validate the presence of required appearance (AP) data before accessing stamp annotation resources. When a PDF contains a stamp annotation missing its AP entry, the code continues to dereference the associated object without a prior null or validity check, which allows a crafted document to trigger a null pointer dereference and crash the application, resulting in denial of service.. EPSS estimates a 0.10% chance of exploitation in the next 30 days.

Description

The application does not validate the presence of required appearance (AP) data before accessing stamp annotation resources. When a PDF contains a stamp annotation missing its AP entry, the code continues to dereference the associated object without a prior null or validity check, which allows a crafted document to trigger a null pointer dereference and crash the application, resulting in denial of service.

Metrics

CVSS 3.1
5.5/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS Probability
0.10%

1.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
FoxitPdf Editor<= 13.2.2.24014
FoxitPdf Editor>= 14.0.0.33046, <= 14.0.2.33402
FoxitPdf Editor>= 2023.1.0.15510, <= 2023.3.0.23028
FoxitPdf Editor>= 2024.1.0.23997, <= 2024.4.1.27687
FoxitPdf Editor>= 2025.1.0.27937, <= 2025.3.0.35737
FoxitPdf Reader<= 2025.3.0.35737
FoxitPdf Editor<= 13.2.2.63349
FoxitPdf Editor>= 14.0.0.68868, <= 14.0.2.69164
FoxitPdf Editor>= 2023.1.0.55583, <= 2023.3.0.63083
FoxitPdf Editor>= 2024.1.0.63682, <= 2024.4.1.66479
FoxitPdf Editor>= 2025.1.0.66692, <= 2025.3.0.69570
FoxitPdf Reader<= 2025.3.0.69570

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2026-3776?
The application does not validate the presence of required appearance (AP) data before accessing stamp annotation resources. When a PDF contains a stamp annotation missing its AP entry, the code continues to dereference the associated object without a prior null or validity check, which allows a crafted document to trigger a null pointer dereference and crash the application, resulting in denial of service.
How severe is CVE-2026-3776?
CVE-2026-3776 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.10% probability of exploitation in the next 30 days.
How do I fix CVE-2026-3776?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-3776?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST