CVE-2025-34101: Serviio Media Server · OS Command Injection
Affects Serviio Media ServerSource CVE Database V5
Public exploit available (Metasploit) · CVSS 9.3 Critical.
Data as of 26 Oct 2026, 12:55 UTC
- EPSS
- 4.3% chance of exploitation in 30 days – higher than 91% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 10 Jul 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: evidence found.
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Serviio Media Server | Affected
| Fixed in– |
AI-suggested
Until a patch is available, it is recommended to restrict network access to the default port 23423 to trusted users only and disable or firewall the /rest/action API endpoint if possible. Monitor for unusual activity related to the Serviio Media Server. Do not expose the REST API to untrusted networks.
Description
An unauthenticated command injection vulnerability exists in Serviio Media Server versions 1.4 through 1.8 on Windows, in the /rest/action API endpoint exposed by the console component (default port 23423). The checkStreamUrl method accepts a VIDEO parameter that is passed unsanitized to a call to cmd.exe, enabling arbitrary command execution under the privileges of the web server. No authentication is required to exploit this issue, as the REST API is exposed by default and lacks access controls.
References
- zeroscience.mk/en/vulnerabilities/ZSL-2017-5408.php (opens in a new tab)
- packetstorm.news/files/id/142387 (opens in a new tab)
- fortiguard.fortinet.com/encyclopedia/ips/44042 (opens in a new tab)
- raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/http/serviio_checkstreamurl_cmd_exec.rb (opens in a new tab)
- vulncheck.com/advisories/serviio-media-server-unauthenticated-command-injection (opens in a new tab)
- exploit-db.com/exploits/42023 (opens in a new tab)