CVE-2023-33538

HIGHNVD 8.89.0▲Trending — 4 sources updated this weekExploited in the wild

8.8

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 .

CVSS v3: 8.8
EG Score: 9.0(high)
EPSS: 99.6%
KEV: ⚠ Exploited

Published

June 7, 2023

Last Modified

October 27, 2025

Advisory Details (4)

Auto-updated Jun 2, 2026

⚠️ Active exploitation confirmed. Patch available. Sources: cisa.

generic

TP-Link End of Life Products

https://www.tp-link.com/us/support/faq/3562/

cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-33538

generic

iotvul/TL-WR940N_TL-WR841N_userRpm_WlanNetworkRpm_Command_Injection.md at main · a101e-IoTvul/iotvul · GitHub

https://web.archive.org/web/20230609111043/https://github.com/a101e-IoTvul/iotvul/blob/main/tp-link/3/TL-WR940N_TL-WR841N_userRpm_WlanNetworkRpm_Command_Injection.md

generic🔴 Active Exploitation

CISA Issues Warning on Active Exploitation of TP-Link Vulnerability CV | SecPod

https://www.secpod.com/blog/cisa-issues-warning-on-active-exploitation-of-tp-link-vulnerability-cve-2023-33538/

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-77Command Injection

Data Freshness Timeline

(refreshed 20× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-05 23:45 UTCEG score recompute
2026-06-05 23:45 UTCGHSA enrichment
2026-06-05 22:46 UTCepss_batch
2026-06-05 22:46 UTCepss_batch
2026-06-05 22:43 UTCkev_newly_listed
2026-06-05 19:37 UTCEG score recompute
2026-06-05 19:37 UTCGHSA enrichment
2026-06-05 15:29 UTCEG score recompute
2026-06-05 15:29 UTCGHSA enrichment
2026-06-05 11:21 UTCEG score recompute
2026-06-05 11:21 UTCGHSA enrichment
2026-06-05 07:12 UTCEG score recompute
2026-06-05 07:12 UTCGHSA enrichment
2026-06-05 03:04 UTCEG score recompute
2026-06-05 03:04 UTCGHSA enrichment
2026-06-04 22:56 UTCEG score recompute
2026-06-04 22:56 UTCGHSA enrichment
2026-06-04 18:48 UTCEG score recompute
2026-06-04 18:48 UTCGHSA enrichment
2026-06-04 14:40 UTCEG score recompute

Frequently asked(6)

What is CVE-2023-33538?

CVE-2023-33538 is a high vulnerability published on June 7, 2023. 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 .

When was CVE-2023-33538 disclosed?

CVE-2023-33538 was first published in the National Vulnerability Database on June 7, 2023, with the most recent update on October 27, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2023-33538 actively exploited?

Yes. CISA added CVE-2023-33538 to the Known Exploited Vulnerabilities catalog on June 16, 2025, affecting TP-Link Multiple Routers. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.

What is the CVSS score of CVE-2023-33538?

CVE-2023-33538 has a CVSS v3 base score of 8.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.

Which products are affected by CVE-2023-33538?

CVE-2023-33538 affects TP-Link Multiple Routers. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.

How do I remediate CVE-2023-33538?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-33538, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2023-33538

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CVE-2023-33538

📅 Published

🔄 Last Modified

📋 Advisory Details (4)