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TI-2023-18228 Aliases CVE-2023-36359GHSA-h9mc-fg3q-67w9

TP-Link TL-WR940N V4, TL-WR841N V8/V10, TL-WR940N V2/V3 and TL-WR941ND V5/V6 were…

Priority MEDIUM 40CWE-120Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.

Summary

TP-Link TL-WR940N V4, TL-WR841N V8/V10, TL-WR940N V2/V3 and TL-WR941ND V5/V6 were discovered to contain a buffer overflow in the component /userRpm/QoSRuleListRpm. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted GET request.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00815 57th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

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

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 10

CPEVersionsRoleVendor
cpe:2.3:o:tp-link:tl-wr940n_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableTP-Link
cpe:2.3:h:tp-link:tl-wr940n:v4:*:*:*:*:*:*:*v4Running onTP-Link
cpe:2.3:o:tp-link:tl-wr841n_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableTP-Link
cpe:2.3:h:tp-link:tl-wr841n:v8:*:*:*:*:*:*:*v8Running onTP-Link
cpe:2.3:h:tp-link:tl-wr841n:v10:*:*:*:*:*:*:*v10Running onTP-Link
cpe:2.3:h:tp-link:tl-wr940n:v2:*:*:*:*:*:*:*v2Running onTP-Link
cpe:2.3:h:tp-link:tl-wr940n:v3:*:*:*:*:*:*:*v3Running onTP-Link
cpe:2.3:o:tp-link:tl-wr941nd_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableTP-Link
cpe:2.3:h:tp-link:tl-wr941nd:v5:*:*:*:*:*:*:*v5Running onTP-Link
cpe:2.3:h:tp-link:tl-wr941nd:v6:*:*:*:*:*:*:*v6Running onTP-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:v4:*:*:*:*:*:*:* Versions v4 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:v8:*:*:*:*:*:*:* Versions v8 Running on ·TP-Link
  • cpe:2.3:h:tp-link:tl-wr841n:v10:*:*:*:*:*:*:* Versions v10 Running on ·TP-Link
  • cpe:2.3:h:tp-link:tl-wr940n:v2:*:*:*:*:*:*:* Versions v2 Running on ·TP-Link
  • cpe:2.3:h:tp-link:tl-wr940n:v3:*:*:*:*:*:*:* Versions v3 Running on ·TP-Link
  • cpe:2.3:o:tp-link:tl-wr941nd_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·TP-Link
  • cpe:2.3:h:tp-link:tl-wr941nd:v5:*:*:*:*:*:*:* Versions v5 Running on ·TP-Link
  • cpe:2.3:h:tp-link:tl-wr941nd:v6:*:*:*:*:*:*:* Versions v6 Running on ·TP-Link

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-36359
  2. 2026-10-03 Alias added: GHSA-h9mc-fg3q-67w9

References

Exploit 1

  • TI-2023-16571 TP-Link TL-WR940N V2/V4, TL-WR841N V8/V10, and TL-WR740N V1/V2 was discovered to contain… KEVCVSS 3.1HIGH 8.8
  • TI-2025-08589 Authenticated RCE via Parental Control command injection KEVCVSS 4.0HIGH 8.6
  • 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-2018-08378 An issue was discovered on TP-Link TL-WR840N v5 00000005 0.9.1 3.16 v0001.0 Build 170608… CVSS 3.0CRITICAL 9.8
  • TI-2026-02790 Authenticated Command Injection on TP-Link TL-WR802N, TL-WR841N and TL-WR840N CVSS 4.0HIGH 8.5
See all 38 →

Sources

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