CVE-2025-9934: TOTOLINK X5000R · Command Injection
Affects TOTOLINK X5000RSource CVE Database V5
Not known to be exploited · CVSS 5.3 Medium.
Data as of 25 Oct 2026, 19:02 UTC
- EPSS
- 3.4% chance of exploitation in 30 days – higher than 88% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:PExploitation evidence
Disclosed: evidence found.
CVE published 3 Sep 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
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 2026-10-25.
What to do
AI-suggested
1. Immediate mitigation should include isolating affected TOTOLINK X5000R devices from critical network segments to limit potential damage. 2. Network administrators should monitor network traffic for unusual activity originating from these routers, including unexpected outbound connections or command execution patterns. 3. Disable or restrict access to the /cgi-bin/cstecgi.cgi interface if possible, or implement strict access controls limiting management interface exposure to trusted IP addresses only. 4. Employ network segmentation to reduce the impact of a compromised router on internal systems. 5. 6. Use intrusion detection/prevention systems (IDS/IPS) to detect exploitation attempts targeting this vulnerability. 7. Educate users about the risks of using outdated or unsupported network devices and encourage timely updates or replacements. 8. Implement strong network authentication and monitoring to detect privilege escalation attempts that could facilitate exploitation.
Description
A vulnerability was found in TOTOLINK X5000R 9.1.0cu.2415_B20250515. This affects the function sub_410C34 of the file /cgi-bin/cstecgi.cgi. Performing manipulation of the argument pid results in command injection. Remote exploitation of the attack is possible. The exploit has been made public and could be used.
References
- vuldb.com (opens in a new tab)
- vuldb.com (opens in a new tab)
- vuldb.com (opens in a new tab)
- github.com/Axelioc/CVE/blob/main/TOTOLINK/X5000R/sub_410C34/sub_410C34.md (opens in a new tab)
- github.com/Axelioc/CVE/blob/main/TOTOLINK/X5000R/sub_410C34/sub_410C34.md (opens in a new tab)
- totolink.net (opens in a new tab)