CVE-2026-7721: Command Injection in Totolink WA300
CVE-2026-7721 is a command injection vulnerability in the Totolink WA300 router firmware version 5. 2cu. 7112_B20190227. The flaw exists in the NTPSyncWithHost function within the /cgi-bin/cstecgi. cgi file, where manipulation of the hostTime argument allows remote attackers to execute arbitrary commands. The vulnerability has been publicly disclosed but there are no known exploits in the wild. The CVSS 4. 0 base score is 5. 3, indicating a medium severity level.
AI Analysis
Technical Summary
This vulnerability affects Totolink WA300 firmware 5.2cu.7112_B20190227. It arises from improper input validation in the NTPSyncWithHost function of /cgi-bin/cstecgi.cgi, allowing remote command injection via the hostTime parameter. The attack vector is network-based with no privileges or user interaction required. The vulnerability has been publicly disclosed but no official patch or remediation guidance is currently available from the vendor. The CVSS 4.0 score is 5.3, reflecting medium impact with low complexity and no privileges needed.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary commands on the affected device, potentially compromising device integrity and confidentiality. This could lead to unauthorized control over the router, impacting network security. However, no known exploits are currently observed in the wild, and the overall severity is medium.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should consider limiting network exposure of the affected device and monitor for unusual activity. No official or temporary fixes have been documented at this time.
CVE-2026-7721: Command Injection in Totolink WA300
Description
CVE-2026-7721 is a command injection vulnerability in the Totolink WA300 router firmware version 5. 2cu. 7112_B20190227. The flaw exists in the NTPSyncWithHost function within the /cgi-bin/cstecgi. cgi file, where manipulation of the hostTime argument allows remote attackers to execute arbitrary commands. The vulnerability has been publicly disclosed but there are no known exploits in the wild. The CVSS 4. 0 base score is 5. 3, indicating a medium severity level.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability affects Totolink WA300 firmware 5.2cu.7112_B20190227. It arises from improper input validation in the NTPSyncWithHost function of /cgi-bin/cstecgi.cgi, allowing remote command injection via the hostTime parameter. The attack vector is network-based with no privileges or user interaction required. The vulnerability has been publicly disclosed but no official patch or remediation guidance is currently available from the vendor. The CVSS 4.0 score is 5.3, reflecting medium impact with low complexity and no privileges needed.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary commands on the affected device, potentially compromising device integrity and confidentiality. This could lead to unauthorized control over the router, impacting network security. However, no known exploits are currently observed in the wild, and the overall severity is medium.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should consider limiting network exposure of the affected device and monitor for unusual activity. No official or temporary fixes have been documented at this time.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-05-03T08:09:52.083Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69f80d4bcbff5d86109fed6d
Added to database: 5/4/2026, 3:06:51 AM
Last enriched: 5/4/2026, 3:21:36 AM
Last updated: 5/4/2026, 4:07:52 AM
Views: 4
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