Skip to content
On CISA KEVCritical

CVE-2022-25084T6 Firmware OS Command Injection

TOTOLink T6 V5.9c.4085_B20190428 was discovered to contain a command injection vulnerability in the "Main" function.

Published Feb 24, 2022 · Updated Nov 21, 2024

Key Facts

Patch immediately
  • CVE-2022-25084 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting T6 Firmware (Totolink).
  • It is exploited in the wild, listed in Industry KEV feed since Apr 1, 2022. No public exploit code is known.
  • EPSS estimates a 22% probability of exploitation in the next 30 days.
  • No fixed version is listed yet; check the vendor advisory for mitigations.
  • Brandefense priority: patch immediately, because it is listed as exploited in the wild.

Scores

CVSS v3.1

9.8

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS (30-day exploit likelihood)

22%

Higher than 97.6% of all scored CVEs

Exploit maturity

Exploited (KEV)

ATLAS score

47/100

Publication score, see How it works

Exploitation Verdict

KEV listed

Apr 1, 2022

36 days after publication

Federal due date

None

No federal due date

Ransomware use

Not reported

Attributed actors

None named

Exploit & Defence Guidance

Exploit maturity

Exploited (KEV)

Public exploit code

0

Proof-of-concept links

In-the-wild evidence

3

Reports of active use

Description

TOTOLink T6 V5.9c.4085_B20190428 was discovered to contain a command injection vulnerability in the "Main" function. This vulnerability allows attackers to execute arbitrary commands via the QUERY_STRING parameter.

Known-Exploited Catalog Listings

CatalogAddedRemediation dueRansomware use
Industry KEV feedApr 1, 2022n/aNot reported

Affected Products

1 affected entries in total
ProductAffected versionsFixed in
T6 FirmwareTotolink5.9c.4085_b20190428n/a

Timeline

  1. Publicly disclosed

    Feb 24, 2022

  2. Added to Industry KEV feed

    Apr 1, 2022

  3. Last updated

    Nov 21, 2024

Weakness Type

  • CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

FAQ

Common Questions.

Is CVE-2022-25084 On Your Attack Surface?

Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.

Request A Demo

More vulnerabilities

Figures as of Oct 24, 2026. Compiled by Brandefense technologies from public vulnerability catalogs; scoring as described in How it works.

To report an error, contact Brandefense.