TP-Link TL-WR940N V2/V4, TL-WR841N V8/V10, and TL-WR740N V1/V2 was discovered to contain…
Priority LOW 39CWE-125Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
TP-Link TL-WR940N V2/V4, TL-WR841N V8/V10, and TL-WR740N V1/V2 was discovered to contain a buffer overflow via the component /userRpm/FixMapCfgRpm.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00903 59th 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
- No
- 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
- 2026-10-02 Threatist record created from CVE-2023-33537
- 2026-10-03 Alias added: GHSA-jgv2-9hrr-wq97
References
More TP-Link Tl-wr740n Firmware vulnerabilities
- 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-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-2023-16569 TP-Link TL-WR940N V2/V4, TL-WR841N V8/V10, and TL-WR740N V1/V2 was discovered to contain… CVSS 3.1HIGH 8.1
Sources
- CVE-2023-33537 · CVE Program
- CVE-2023-33537 · NVD
- FIRST EPSS
- GHSA-jgv2-9hrr-wq97 · GitHub Advisory Database · CC BY 4.0
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