# CVE-2026-79912 — TOTOLINK N600R

> As of 2026-08-26, CVE-2026-79912 is a HIGH-severity vulnerability in TOTOLINK N600R, CVSS v3.1 8.3, EPSS 1.4% (70.5th percentile). No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-79912 as of 2026-08-26; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

**Last updated:** 2026-08-26

## What is CVE-2026-79912?

A vulnerability was detected in TOTOLINK N600R 4.3.0cu.7647_B20210106. The impacted element is the function getCurrentTime of the file /cgi-bin/cstecgi.cgi. Performing a manipulation of the argument ntp_server results in command injection. The attack can be initiated remotely. The exploit is now public and may be used.

The record classifies CVE-2026-79912 under weakness classes [CWE-77](https://intel.threadlinqs.com/cwe/CWE-77), [CWE-74](https://intel.threadlinqs.com/cwe/CWE-74). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs no user interaction. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 41 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 8.3 — HIGH (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L/E:P/RL:X/RC:R`)
- **CVSS v4.0 base score:** 6.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:P`)
- **EPSS (FIRST):** 1.4% probability of exploitation in the next 30 days, higher than 70.5% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 7/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-08-25, last modified 2026-08-26

## Is CVE-2026-79912 being exploited?

It currently carries a trending score of 47 in the Threadlinqs vulnerability feed.

## Affected products and versions

- **TOTOLINK**: N600R

## How to fix CVE-2026-79912

No vendor patch reference has been recorded for CVE-2026-79912 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-79912

No threat campaign in the Threadlinqs corpus currently references CVE-2026-79912, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.

## Sources

Enriched from CVE.org, GitHub Security Advisories, FIRST EPSS. Last verified by Threadlinqs on 2026-08-26.

**Exploit and proof of concept**

- [github.com — exploit](https://github.com/dxz0069/WAVLINK-WN530H4-Command-Injection-in-set_add_routing/blob/main/TOTOLINK_N600R_cstecgi_Time_WiFi_Service_popen_Command_Injection.md)

**Technical analysis**

- [vuldb.com — vdb entry](https://vuldb.com/vuln/395062)

**Third-party advisory**

- [vuldb.com — signature](https://vuldb.com/vuln/395062/cti)
- [vuldb.com — third party advisory](https://vuldb.com/cve/CVE-2026-79912)
- [vuldb.com — third party advisory (881261)](https://vuldb.com/submit/881261)

**Issue tracking and product pages**

- [totolink.net — product](https://www.totolink.net/)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-79912
Full detection coverage and IOCs for threats exploiting CVE-2026-79912 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp