CVE-2026-5102General(totolink / a3300r)

LOWCVSS 8.8 · HIGH

Signal is active with 4 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

A security flaw has been discovered in Totolink A3300R 17.0.0cu.557_b20221024. This vulnerability affects the function setSmartQosCfg of the file /cgi-bin/cstecgi.cgi of the component Parameter Handler. The manipulation of the argument qos_up_bw results in command injection. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-74CWE-77

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • a3300r
  • a3300r_firmware

Threat summary

  • 4 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • General: 3 classified signals
  • Disclosure: 1 classified signal
  • 4 total mentions across 1 day

Affected systems

Vendors
Products
a3300ra3300r_firmware

2 versions affected across 2 products

Deep dive

Activity timeline4 mentions / 1d
01234Mentions · 2026-03-30: 4Technical Details · 2026-03-30: 103-30
Signal classification2 categories
General
375.0%
Disclosure
125.0%
Referenced assets4 URLs
Full discourse4 posts
  • CVEarity@CVEarity
    General

    ⚡ New CVE Alert: CVE-2026-5102 📊 Severity: 6.3 🚨 Risk Level: Medium 🧩 Affects: Multiple / Unspecified Products Reference: https://nvd.nist.gov/vuln/detail/CVE-2026-5102 #CVE-2026-5102 #CVE #Medium #CyberSecurity #InfoSec https://t.co/7oEHv7oP8q

    Post summary

    The tweet simply announces CVE-2026-5102 with a medium severity score, but no technical, exploit, or mitigation details are provided.

    0000030
    116 followersView on X
  • CVE@CVEnew
    General

    CVE-2026-5102 A security flaw has been discovered in Totolink A3300R 17.0.0cu.557_b20221024. This vulnerability affects the function setSmartQosCfg of the file /cgi-bin/cstecgi.cgi o… https://www.cve.org/CVERecord?id=CVE-2026-5102

    Post summary

    The brief post merely announces the existence of CVE‑2026‑5102 and links to its CVE record, without providing technical, exploit, or mitigation details.

    0000059
    56.9K followersView on X
  • CyberDudeBivash® | Global Cybersecurity Company@cyberbivash
    Disclosure

    🚨 CYBERDUDEBIVASH SENTINEL APEX ALERT 🚨 Threat: CVE-2026-5102 - Totolink A3300R Parameter cstecgi.cgi setSmartQosCfg command injection Intel Report: https://ift.tt/qHhvCMD

    Post summary

    A new command‑injection vulnerability (CVE‑2026‑5102) in the Totolink A3300R router’s cstecgi.cgi setSmartQosCfg parameter has been reported. No Proof of Concept, exploit, or patch details were provided, and active exploitation is not indicated.

    0000041
    281 followersView on X
  • cybersecuritypath@cybrsecpath
    General

    Totolink A3300R Vulnerability CVE-2026-5102: Command Injection Exploit Revealed https://cybersecuritypath.com/totolink-a3300r-vulnerability-cve-2026-5102-command-injection-exploit-revealed/ #cybersecuritynews #Totolink #vulnerability

    Post summary

    A brief mention of a discovered TótoLink router vulnerability (CVE-2026-5102) with a link to an external article, but no concrete details about the exploit or mitigation were provided in the text.

    0000057
    3 followersView on X
CPE platform detail2 entries

2 of 2 entries

PartVendorProductVersionTarget SWTarget HW
HWtotolinka3300r---
OStotolinka3300r_firmware17.0.0cu.557_b20221024--

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