CVE-2026-0392

HIGH
MEDIUM Priority: 0.01 BB Relevance: 50/100
Published: 2026-08-03 Modified: 2026-10-23 First seen: 2026-10-29 Status: active

Attack Surface

Adjacent Low Complexity No Auth Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Adjacent
AC: Low
PR: None
UI: Active
S: X
AT: Present
VC: High
VI: High
VA: High

Description

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.

Weakness Classification (3)

Bug Bounty Relevance

50 / 100
✓ No authentication
✓ Low complexity

CVSS Score

7.3 / 10.0 v4.0
CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

0.09%
Raw Score 0.000860
Percentile 0.3%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00086
2026-10-28
0.00086

Intelligence Sources

nvd ref →