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Vulnerability record · CVE-2025-13316 · published 19 November 2025

CVE-2025-13316: Lynxtechnology twonky server vulnerability

Lynxtechnology · Twonky Server

Twonky Server 8.5.2 on Linux and Windows is vulnerable to a cryptographic flaw, use of hard-coded cryptographic keys. An attacker with knowledge of the encrypted administrator password can decrypt the value with static keys to view the plain text password and gain administrator-level access to Twonky Server.

8.2 CVSS 4.0 High EPSS 2.7% · top 14.8% CWE-321 · CWE-321
8.2CVSS 4.0 base score
2.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
17 Jun 2026Last modified by NVD

Description

Twonky Server 8.5.2 on Linux and Windows is vulnerable to a cryptographic flaw, use of hard-coded cryptographic keys. An attacker with knowledge of the encrypted administrator password can decrypt the value with static keys to view the plain text password and gain administrator-level access to Twonky Server.

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/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:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.rapid7.com/blog/post/cve-2025-13315-cve-2025-13316-critical-twonky-server-authentication-bypass-not-fixed/ Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.3CVE-2025-13315Lynxtechnology twonky server vulnerabilityTwonky Server 8.5.2 on Linux and Windows is vulnerable to an access control flaw. An unauthenticated attacker can bypass web service API authenticati…EPSS 32%7.5CVE-2018-7171Lynxtechnology twonky server path traversal vulnerabilityDirectory traversal vulnerability in Twonky Server 7.0.11 through 8.5 allows remote attackers to share the contents of arbitrary directories via a ..…EPSS 28%6.1CVE-2018-9177Lynxtechnology twonky server cross-site scripting vulnerabilityTwonky Server before 8.5.1 has XSS via a folder name on the Shared Folders screen.EPSS 0.68%6.1CVE-2018-9182Lynxtechnology twonky server cross-site scripting vulnerabilityTwonky Server before 8.5.1 has XSS via a modified "language" parameter in the Language section.EPSS 1.4%6.1CVE-2018-7203Lynxtechnology twonky server cross-site scripting vulnerabilityCross-site scripting (XSS) vulnerability in Twonky Server 7.0.11 through 8.5 allows remote attackers to inject arbitrary web script or HTML via the f…EPSS 2.3%9.8CVE-2025-30406Gladinet CentreStack hardcoded machineKey deserialization RCEGladinet CentreStack through 16.1.10296.56315 (fixed in 16.4.10315.56368) uses a hardcoded machineKey in the portal's web.config, allowing deserializ…KEVEPSS 94%analysed9.8CVE-2016-4437Apache Shiro hardcoded remember-me cipher key enables code executionApache Shiro before 1.2.5 uses a default cipher key for the "remember me" feature when no key is configured, allowing attackers to forge or decrypt r…KEVEPSS 93%analysed

Source: NIST National Vulnerability Database (record CVE-2025-13316), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.