CVE-2026-0392

Summary

eParakstītājs 3.0 for Windows before version 1.10.0 retrieves and executes its automatic updates over a channel that is not authenticated or integrity-protected. On each launch the application fetches an update descriptor (XML) over TLS but accepts any TLS certificate (a permissive TrustManager and a HostnameVerifier that always returns true), does not verify any digital signature on the update descriptor, and does not verify the Authenticode signature or a checksum of the downloaded installer before running it. A man-in-the-middle attacker able to redirect www.eparaksts.lv can serve a crafted update descriptor pointing to an attacker-controlled executable, which the client downloads and executes, resulting in arbitrary code execution on the victim host.

Affected Software

VendorProductVersion RangeStatus
Latvijas Valsts radio un televīzijas centrs (LVRTC)eParakstītājs 3.00 < 1.10.0affected

Weaknesses

  • CWE-494: CWE-494 Download of code without integrity check
  • CWE-295: CWE-295 Improper certificate validation
  • CWE-347: CWE-347 Improper verification of cryptographic signature

Workarounds

Until updated, disable automatic updates and install new versions only from the official signed package obtained over a trusted network, verifying the Authenticode signature manually.

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: total

References