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Critical

CVE-2022-25064Tl-Wr840n Firmware OS Command Injection

TP-LINK TL-WR840N(ES)_V6.20_180709 was discovered to contain a remote code execution (RCE) vulnerability via the function oal_wan6_setIpAddr.

Published Feb 28, 2022 · Updated Jul 9, 2026

Key Facts

Patch immediately
  • CVE-2022-25064 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Tl-Wr840n Firmware (Tp-Link).
  • It is exploited in the wild, listed in Industry KEV feed since Jul 25, 2024. No public exploit code is known.
  • EPSS estimates a 36% 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)

36%

Higher than 98.4% of all scored CVEs

Exploit maturity

None known

ATLAS score

29/100

Publication score, see How it works

Exploitation Verdict

KEV listed

Jul 25, 2024

Federal due date

None

No federal due date

Ransomware use

Not reported

Attributed actors

None named

Exploit & Defence Guidance

Exploit maturity

None known

Public exploit code

0

Proof-of-concept links

In-the-wild evidence

2

Reports of active use

Description

TP-LINK TL-WR840N(ES)_V6.20_180709 was discovered to contain a remote code execution (RCE) vulnerability via the function oal_wan6_setIpAddr.

Known-Exploited Catalog Listings

CatalogAddedRemediation dueRansomware use
Industry KEV feedJul 25, 2024n/aNot reported

Affected Products

1 affected entries in total
ProductAffected versionsFixed in
Tl-Wr840n FirmwareTp-Link6.20_180709n/a

Timeline

  1. Publicly disclosed

    Feb 28, 2022

  2. Added to Industry KEV feed

    Jul 25, 2024

  3. Last updated

    Jul 9, 2026

Weakness Type

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

References

4 more references in the full CVE brief

FAQ

Common Questions.

Is CVE-2022-25064 On Your Attack Surface?

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More vulnerabilities

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

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