VulnSocial

CVE-2026-5103Disclosure(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 weakness has been identified in Totolink A3300R 17.0.0cu.557_b20221024. This issue affects the function setUPnPCfg of the file /cgi-bin/cstecgi.cgi. This manipulation of the argument enable causes command injection. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks.

totolink CVEsBack to dashboard
0.0/ 10 priority

Sources & remediation

Exploit / PoC references
Vendor / third-party advisories
Other references
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 4 signals
  • Disclosure: 4 classified signals
  • 4 total mentions across 1 day

Affected systems

Vendors
totolink
Products
a3300ra3300r_firmware

2 versions affected across 2 products

Deep dive

Activity timeline4 mentions / 1d
01234Mentions · 2026-03-30: 4Technical Details · 2026-03-30: 403-30
Signal classification1 categories
Disclosure
4100.0%
Referenced assets4 URLs
Full discourse4 posts
  • CVE@CVEnew
    Disclosure

    CVE-2026-5103 A weakness has been identified in Totolink A3300R 17.0.0cu.557_b20221024. This issue affects the function setUPnPCfg of the file /cgi-bin/cstecgi.cgi. This manipulation… https://www.cve.org/CVERecord?id=CVE-2026-5103

    Post summary

    The text discloses a newly identified weakness in Totolink A3300R affecting the setUPnPCfg function, without providing exploitation details or mitigation steps.

    0001066
    56.9K followersView on X
  • CVEarity@CVEarity
    Disclosure

    ⚡ New CVE Alert: CVE-2026-5103 📊 Severity: 6.3 🚨 Risk Level: Medium 🧩 Affects: Multiple / Unspecified Products Reference: https://nvd.nist.gov/vuln/detail/CVE-2026-5103 #CVE-2026-5103 #CVE #Medium #CyberSecurity #InfoSec https://t.co/0AOe3wESkg

    Post summary

    The tweet announces a new, medium‑severity CVE with a NVD link but lacks detailed technical, exploit, or mitigation information.

    0000028
    116 followersView on X
  • CyberDudeBivash® | Global Cybersecurity Company@cyberbivash
    Disclosure

    🚨 CYBERDUDEBIVASH SENTINEL APEX ALERT 🚨 Threat: CVE-2026-5103 - Totolink A3300R cstecgi.cgi setUPnPCfg command injection Intel Report: https://ift.tt/Hv6gfj0

    Post summary

    The tweet announces CVE-2026-5103, a command injection flaw in Totolink A3300R devices, and links to an Intel report for details.

    0000040
    281 followersView on X
  • cybersecuritypath@cybrsecpath
    Disclosure

    Totolink A3300R Vulnerability CVE-2026-5103: Remote Command Injection Exploit Exposed https://cybersecuritypath.com/totolink-a3300r-vulnerability-cve-2026-5103-remote-command-injection-exploit-exposed/ #cybersecuritynews #Totolink #vulnerability

    Post summary

    The article announces a remote command injection vulnerability (CVE‑2026‑5103) in the Totolink A3300R router, but it does not provide exploit code, patch details, or evidence of active exploitation.

    0000059
    3 followersView on X
CPE platform detail2 entries

2 of 2 entries

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

Explore more

Back to dashboardtotolink CVEsa3300r vulnerabilities