CVE-2023-33538

TP-Link Multiple Routers: Command Injection

As of , CVE-2023-33538 in TP-Link Multiple Routers is on CISA's list of exploited vulnerabilities: CISA listed it on . Our patch-first group: Patch soon.

Exploited
Yes: CISA listed it on 16 June 2025
US federal deadline
7 July 202521 days after CISA listed it. US federal civilian agencies must fix it by then.
Used in ransomware campaigns
Not known to CISA
EPSS score
0.42Higher than 98% of the CVEs EPSS scores. EPSS estimates the chance of exploitation activity in the next 30 days.
Public exploit
None foundNeither Metasploit nor Exploit-DB lists one.
Fix
Vendor advice: www.tp-link.comLinks below, from CISA's entry.

What CISA says to do

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

CISA's required action

What the flaw is

TP-Link TL-WR940N V2/V4, TL-WR841N V8/V10, and TL-WR740N V1/V2 contain a command injection vulnerability via the component /userRpm/WlanNetworkRpm. The impacted products could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization.

CISA's description

TP-Link TL-WR940N V2/V4, TL-WR841N V8/V10, and TL-WR740N V1/V2 was discovered to contain a command injection vulnerability via the component /userRpm/WlanNetworkRpm .

The CVE record's description, from mitre

CVE published
7 June 2023
Assigned by
mitre
CVSS
8.8 High (CVSS 3.1, from CISA-ADP)
CWE-77
Improper Neutralization of Special Elements used in a Command ('Command Injection')
CISA SSVC, exploitation
active
CISA SSVC, automatable
yes
CISA SSVC, technical impact
total

Timeline

  1. The CVE record was published.
  2. CISA added it to its list of exploited vulnerabilities.
  3. The US federal deadline to fix it.

Multiple Routers: other exploited entries

VulnerabilityProductOur groupListedDeadlineEPSS
CVE-2025-9377Archer C7(EU) and TL-WR841N/ND(MS) OS Command InjectionTP-Link Multiple RoutersPatch soon0.34

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