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PatchSiren cyber security CVE debrief

CVE-2026-79912 TOTOLINK CVE debrief

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-08-25T23:17:59.663Z and has not been modified since then. The vulnerability, CVE-2026-79912, is a command injection issue in the getCurrentTime function of /cgi-bin/cstecgi.cgi in TOTOLINK N600R 4.3.0cu.7647_B20210106. The vulnerability is triggered by manipulating the ntp_server argument, allowing for remote attacks. A public exploit is available, increasing the urgency for patching or mitigating the vulnerability. Network administrators and security teams should be aware of this vulnerability and take immediate action to mitigate the risk.

Vendor
TOTOLINK
Product
N600R
CVSS
MEDIUM 5.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-08-25
Original CVE updated
2026-08-26
Advisory published
2026-08-25
Advisory updated
2026-08-26

Who should care

Network administrators and security teams responsible for managing TOTOLINK N600R devices, as well as organizations using these devices, should be aware of this vulnerability and take immediate action to mitigate the risk.

Technical summary

The CVE-2026-79912 vulnerability is a command injection issue in the getCurrentTime function of /cgi-bin/cstecgi.cgi in TOTOLINK N600R 4.3.0cu.7647_B20210106. The vulnerability is triggered by manipulating the ntp_server argument, allowing for remote attacks. A public exploit is available, increasing the urgency for patching or mitigating the vulnerability. The attack can be initiated remotely. The exploit is now public and may be used. Medium-priority defensive actions are recommended due to the publicly available exploit and remote attack vector.

Defensive priority

Medium-priority defensive actions are recommended due to the publicly available exploit and remote attack vector.

Recommended defensive actions

  • Verify the integrity of the /cgi-bin/cstecgi.cgi file and restrict access to it
  • Implement input validation and sanitization for the ntp_server argument
  • Monitor network traffic for suspicious activity related to the TOTOLINK N600R device
  • Consider replacing or patching the affected TOTOLINK N600R device
  • Review and update firewall rules to restrict access to the device's management interface

Evidence notes

The CVE-2026-79912 record indicates a command injection vulnerability in TOTOLINK N600R 4.3.0cu.7647_B20210106, specifically in the getCurrentTime function of /cgi-bin/cstecgi.cgi. The vulnerability is triggered by manipulating the ntp_server argument. The attack can be initiated remotely, and a public exploit is available. However, detailed information about the vendor, affected products, and patch status is limited.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-79912 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-79912

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-79912 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-79912

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.