TP-Link TL-WR940N V2, TP-Link TL-WR941ND V5 and TP-Link TL-WR841N V8 were discovered to…
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 · NVD. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.
Summary
TP-Link TL-WR940N V2, TP-Link TL-WR941ND V5 and TP-Link TL-WR841N V8 were discovered to contain a buffer overflow via the component /userRpm/AccessCtrlAccessRulesRpm. 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 0.00744 55th 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
| 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 · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:tp-link:tl-wr940n_v2_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | TP-Link |
| cpe:2.3:h:tp-link:tl-wr940n_v2:-:*:*:*:*:*:*:* | not specified by NVD | Running on | TP-Link |
| cpe:2.3:o:tp-link:tl-wr941nd_v5_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | TP-Link |
| cpe:2.3:h:tp-link:tl-wr941nd_v5:-:*:*:*:*:*:*:* | not specified by NVD | Running on | TP-Link |
| cpe:2.3:o:tp-link:tl-wr841n_v8_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | TP-Link |
| cpe:2.3:h:tp-link:tl-wr841n_v8:-:*:*:*:*:*:*:* | not specified by NVD | Running on | TP-Link |
- cpe:2.3:o:tp-link:tl-wr940n_v2_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·TP-Link
- cpe:2.3:h:tp-link:tl-wr940n_v2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·TP-Link
- cpe:2.3:o:tp-link:tl-wr941nd_v5_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·TP-Link
- cpe:2.3:h:tp-link:tl-wr941nd_v5:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·TP-Link
- cpe:2.3:o:tp-link:tl-wr841n_v8_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·TP-Link
- cpe:2.3:h:tp-link:tl-wr841n_v8:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·TP-Link
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-39745
- 2026-10-03 Alias added: GHSA-4vrf-7x42-9ggg
More TP-Link Tl-wr841n V8 Firmware vulnerabilities
- TI-2023-20773 TP-Link WR841N V8, TP-Link TL-WR940N V2, and TL-WR941ND V5 were discovered to contain a… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2023-39745 · CVE Program
- CVE-2023-39745 · NVD
- FIRST EPSS
- GHSA-4vrf-7x42-9ggg · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences