CVE Catalog

CVE-2026-103902

HighCVSS 7.5
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.15%

4th percentile - higher than 4% of all known CVEs

Summary

An improper verification of cryptographic signature vulnerability in DigiDoc libdigidocpp, DigiDoc4, DigiDoc Android, and DigiDoc iOS allows an attacker to create forged digital signatures that are displayed as valid by affected software.

Risk Assessment

An attacker can forge digital signatures, leading to document fraud, integrity compromise, and loss of trust.

Recommendation

Update all affected DigiDoc components to patched versions (libdigidocpp 4.5.0+, DigiDoc4 4.11.0+, Android/iOS 3.1.0+).

Related vulnerabilities

Original NVD description (English source)

Improper verification of cryptographic signature vulnerability in DigiDoc libdigidocpp, DigiDoc DigiDoc4, DigiDoc DigiDoc Android, and DigiDoc DigiDoc iOS. The vulnerability allows an attacker to create forged digital signatures that are displayed a valid by affected DigiDoc software.This issue affects libdigidocpp: from 4.0.0 before 4.5.0; DigiDoc4: from 4.6.0 before 4.11.0; DigiDoc Android: from 2.7.0 before 3.1.0; DigiDoc iOS: from 2.7.0 before 3.1.0.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS