CVE-2023-33538 (GCVE-0-2023-33538)
Vulnerability from cvelistv5 – Published: 2023-06-07 00:00 – Updated: 2025-12-20 04:55Summary
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 .
Severity
8.8 (High)
SSVC
Exploitation: active
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-06-16 00:00 UTC
CWE
- n/a
- CWE-77 - Improper Neutralization of Special Elements used in a Command ('Command Injection')
Assigner
References
5 references
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 72bb4ba8-05be-48c3-aa04-1a8e13b5e751
Exploited: Yes
Timestamps
First Seen: 2025-06-16
Asserted: 2025-06-16
Scope
Notes: TP-Link Multiple Routers Command Injection Vulnerability | Affected: TP-Link / Multiple Routers | Description: TP-Link TL-WR940N V2/V4, TL-WR841N V8/V10, and TL-WR740N V1/V2 contain a command injection vulnerability via the component /userRpm/WlanNetworkRpm. The impacted products could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization. | Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. | Due date: 2025-07-07 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://www.tp-link.com/nordic/support/faq/3562/ ; https://nvd.nist.gov/vuln/detail/CVE-2023-33538
Evidence
Type: Vendor Report
Signal: Successful Exploitation
Confidence: 80%
Source: cisa-kev
Details
| Cwes | CWE-77 |
|---|---|
| Feed | CISA Known Exploited Vulnerabilities Catalog |
| Product | Multiple Routers |
| Due Date | 2025-07-07 |
| Date Added | 2025-06-16 |
| Vendorproject | TP-Link |
| Vulnerabilityname | TP-Link Multiple Routers Command Injection Vulnerability |
| Knownransomwarecampaignuse | Unknown |
References
Created: 2026-10-02 08:09 CEST
| Updated: 2026-10-02 08:09 CEST
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 2d158279-5318-4445-b9ea-9b6d2fa3d0db
Exploited: Yes
Timestamps
First Seen: 2026-06-01
Asserted: 2026-06-01
Scope
Notes: 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... | Affected: TP-Link / TL-WR940N, TL-WR841N, TL-WR740N | CVSS: 8.8 (HIGH) | EPSS: 0.41606 | Used in malware: unknown | Listed 1 day ahead of CISA KEV | Not yet in CISA KEV: False
Evidence
Type: Public Report
Signal: Successful Exploitation
Confidence: 70%
Source: previdian
Details
| Feed | Previdian (previdian.com) |
|---|---|
| Title | 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... |
| Cve Id | CVE-2023-33538 |
| Vendor | TP-Link |
| Ghsa Id | None |
| Product | TL-WR940N, TL-WR841N, TL-WR740N |
| Added Date | 2026-06-01T10:33:02.281Z |
| Cvss Score | 8.8 |
| Epss Score | 0.41606 |
| Previous Ids | |
| Cvss Severity | HIGH |
| Virtual Patch | False |
| Cvss Estimated | False |
| Epss Percentile | 0.98642 |
| Used In Malware | unknown |
| Vulnerability Id | CVE-2023-33538 |
| Ahead Of Cisa Kev |
|
| Not Yet In Cisa Kev | False |
References
Created: 2026-10-02 09:10 CEST
| Updated: 2026-10-02 09:10 CEST
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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