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CVE-2023-33538

High CVSS 8.8 Known exploited

Published 2023-06-07 · last changed 2026-06-17 · added to CISA KEV 2025-06-16

This one is being exploited in the wild.

CISA added CVE-2023-33538 to the Known Exploited Vulnerabilities catalog on 2025-06-16. Federal agencies are required to remediate it on a deadline. If you have affected machines, this is the class of finding that moves ahead of the rest of the queue.

The fix

We hold no Microsoft remediation data for CVE-2023-33538, which normally means it is not a Windows CVE. For non-Microsoft software the fix is the vendor's own updated release, and the affected versions are listed below.

What it is

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 .

Sources

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