CVE-2020-13117
CriticalExploitedWavlink WN575A4, WN579X3, and WN530G3A devices through 2020-05-15 allow unauthenticated remote users to inject commands via the key parameter in a login request.
Published Feb 9, 2021 · Updated Aug 19, 2025
Key Facts
Patch immediately- CVE-2020-13117 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Wn575a4 Firmware (Wavlink), Wn579x3 Firmware (Wavlink).
- It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Oct 14, 2023. No public exploit code is known.
- EPSS estimates a 69% probability of exploitation in the next 30 days.
- Fixed versions are available, including Wn575a4 Firmware <=2020-05-15, Wn579x3 Firmware <=2020-05-15, Wn575a4 Firmware 2020-05-15.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
69%
Higher than 99.3% of all scored CVEs
Exploited in the wild
Yes
2 catalog listings
Public exploit code
None known
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Description
Wavlink WN575A4, WN579X3, and WN530G3A devices through 2020-05-15 allow unauthenticated remote users to inject commands via the key parameter in a login request.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Dec 11, 2023 | n/a | Not reported |
| CIRCL KEV | Oct 14, 2023 | n/a | Not reported |
Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Affected Products
2 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Wn575a4 FirmwareWavlink | See advisory | 2020-05-15 |
| Wn579x3 FirmwareWavlink | See advisory | 2020-05-15 |
Patched Releases
Wn575a4 Firmware
<=2020-05-15
Wn579x3 Firmware
<=2020-05-15
Timeline
Publicly disclosed
Feb 9, 2021
Added to CIRCL KEV
Oct 14, 2023
Added to Industry KEV feed
Dec 11, 2023
Last updated
Aug 19, 2025
Weakness Type
- CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')
References
- exploithttps://blog.0xlabs.com/2021/02/wavlink-rce-CVE-2020-13117.html
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
FAQ
Common Questions.
Wavlink WN575A4, WN579X3, and WN530G3A devices through 2020-05-15 allow unauthenticated remote users to inject commands via the key parameter in a login request.
Affected: Wn575a4 Firmware (Wavlink); Wn579x3 Firmware (Wavlink). The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Oct 14, 2023.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including Wn575a4 Firmware <=2020-05-15, Wn579x3 Firmware <=2020-05-15, Wn575a4 Firmware 2020-05-15.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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