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CVE-2026-0392— eParakstītājs 3.0 for Windows – remote code execution via unauthenticated auto-update

Quick assessment

Affected
Latvijas Valsts radio un televīzijas centrs (LVRTC) eParakstītājs 3.0
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Latvijas Valsts radio un televīzijas centrs eParakstītājs是Latvijas Valsts radio un televīzijas centrs公司的一款电子签名与身份认证系统。 Latvijas Valsts radio un televīzijas centrs eParakstītājs 1.10.0之前版本存在安全漏洞，该漏洞源于自动更新通道未进行身份验证和完整性保护，接受任意TLS证书，未验证更新描述符的数字签名及安装程序的Authent

CVSS 7.3 · High EPSS 0.09% · P0

Affected Version Matrix 1

VendorProduct Version RangeStatus
Latvijas Valsts radio un televīzijas centrs (LVRTC) eParakstītājs 3.0 < 1.10.0 affected
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I. Basic Information for CVE-2026-0392

Vulnerability Information
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Vulnerability Title
eParakstītājs 3.0 for Windows – remote code execution via unauthenticated auto-update
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
下载代码缺少完整性检查
Source: CVE Program / CVE List V5
Vulnerability Title
Latvijas Valsts radio un televīzijas centrs eParakstītājs 加密问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Latvijas Valsts radio un televīzijas centrs eParakstītājs是Latvijas Valsts radio un televīzijas centrs公司的一款电子签名与身份认证系统。 Latvijas Valsts radio un televīzijas centrs eParakstītājs 1.10.0之前版本存在安全漏洞，该漏洞源于自动更新通道未进行身份验证和完整性保护，接受任意TLS证书，未验证更新描述符的数字签名及安装程序的Authent
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Latvijas Valsts radio un televīzijas centrs (LVRTC) eParakstītājs 3.0 0 ~ 1.10.0 -

II. Public POCs for CVE-2026-0392

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-0392

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Vendor Advisories for CVE-2026-0392 (1)

Security Blog Posts for CVE-2026-0392 (1)

Vendor Pages for CVE-2026-0392 (1)

IV. Related Vulnerabilities

Same weakness: CWE-494