TI-2023-16571 Aliases CVE-2023-33538 GHSA-49g9-8m2w-hfgg

TP-Link TL-WR940N V2/V4, TL-WR841N V8/V10, and TL-WR740N V1/V2 was discovered to contain…

CRITICAL 97Exploited in the wildCWE-77Published 2023-06-07 · Updated 2025-12-20

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-77.

Summary

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 .

Why it matters now

Exploitation Active In CISA KEV since 2025-06-16CISA due date 2025-07-07

EPSS 0.41606 98th percentileScored 2026-11-07

Public exploit Yes 2 exploit referencesTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Active
Automatable: Yes
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 9

CPE	Versions	Role	Vendor
cpe:2.3:o:tp-link:tl-wr940n_firmware:-:::::::*	not specified by NVD	Vulnerable	TP-Link
cpe:2.3:h:tp-link:tl-wr940n:2.0:::::::*	2.0	Running on	TP-Link
cpe:2.3:h:tp-link:tl-wr940n:4.0:::::::*	4.0	Running on	TP-Link
cpe:2.3:o:tp-link:tl-wr841n_firmware:-:::::::*	not specified by NVD	Vulnerable	TP-Link
cpe:2.3:h:tp-link:tl-wr841n:8.0:::::::*	8.0	Running on	TP-Link
cpe:2.3:h:tp-link:tl-wr841n:10.0:::::::*	10.0	Running on	TP-Link
cpe:2.3:o:tp-link:tl-wr740n_firmware:-:::::::*	not specified by NVD	Vulnerable	TP-Link
cpe:2.3:h:tp-link:tl-wr740n:1.0:::::::*	1.0	Running on	TP-Link
cpe:2.3:h:tp-link:tl-wr740n:2.0:::::::*	2.0	Running on	TP-Link

cpe:2.3:o:tp-link:tl-wr940n_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·TP-Link
cpe:2.3:h:tp-link:tl-wr940n:2.0:*:*:*:*:*:*:* Versions 2.0 Running on ·TP-Link
cpe:2.3:h:tp-link:tl-wr940n:4.0:*:*:*:*:*:*:* Versions 4.0 Running on ·TP-Link
cpe:2.3:o:tp-link:tl-wr841n_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·TP-Link
cpe:2.3:h:tp-link:tl-wr841n:8.0:*:*:*:*:*:*:* Versions 8.0 Running on ·TP-Link
cpe:2.3:h:tp-link:tl-wr841n:10.0:*:*:*:*:*:*:* Versions 10.0 Running on ·TP-Link
cpe:2.3:o:tp-link:tl-wr740n_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·TP-Link
cpe:2.3:h:tp-link:tl-wr740n:1.0:*:*:*:*:*:*:* Versions 1.0 Running on ·TP-Link
cpe:2.3:h:tp-link:tl-wr740n:2.0:*:*:*:*:*:*:* Versions 2.0 Running on ·TP-Link

Remediation

No fixed version listed by the sources yet.

Timeline

2025-06-16 Added to CISA KEV
2026-10-02 Threatist record created from CVE-2023-33538
2026-10-03 Alias added: GHSA-49g9-8m2w-hfgg

References

Exploit 2

Advisory 1

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

TI-2015-02672 Directory traversal vulnerability in TP-LINK Archer C5 (1.2) with firmware before 150317… KEVCVSS 3.1HIGH 7.5
TI-2023-27456 Authentication bypass by spoofing in TP-Link TL-WR841N KEVCVSS 3.1MEDIUM 6.5
TI-2022-03934 TP-Link TL-WR740N ARP resource consumption CVSS 3.1MEDIUM 6.5
TI-2023-18223 TP-Link TL-WR940N V4, TL-WR841N V8/V10, TL-WR740N V1/V2, TL-WR940N V2/V3, and TL-WR941ND… CVSS 3.1HIGH 7.5
TI-2023-16570 TP-Link TL-WR940N V2/V4, TL-WR841N V8/V10, and TL-WR740N V1/V2 was discovered to contain… CVSS 3.1HIGH 8.1
TI-2023-16569 TP-Link TL-WR940N V2/V4, TL-WR841N V8/V10, and TL-WR740N V1/V2 was discovered to contain… CVSS 3.1HIGH 8.1

See all 9 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences