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Vulnerability Intelligence

CVE-2020-12124

CriticalExploited

A remote command-line injection vulnerability in the /cgi-bin/live_api.cgi endpoint of the WAVLINK WN530H4 M30H4.V5030.190403 allows an attacker to execute arbitrary Linux commands as root without authentication.

Published Oct 2, 2020 · Updated Nov 21, 2024

Key Facts

Patch immediately
  • CVE-2020-12124 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Wn530h4 Firmware (Wavlink).
  • It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Mar 30, 2024. No public exploit code is known.
  • EPSS estimates a 75% probability of exploitation in the next 30 days.
  • No fixed version is listed yet; check the vendor advisory for mitigations.
  • 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)

75%

Higher than 99.4% of all scored CVEs

Exploited in the wild

Yes

2 catalog listings

Public exploit code

None known

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Description

A remote command-line injection vulnerability in the /cgi-bin/live_api.cgi endpoint of the WAVLINK WN530H4 M30H4.V5030.190403 allows an attacker to execute arbitrary Linux commands as root without authentication.

Known-Exploited Catalog Listings

CatalogAddedRemediation dueRansomware use
Industry KEV feedMar 30, 2024n/aNot reported
CIRCL KEVMar 30, 2024n/aNot reported

Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Affected Products

1 affected entries in total
ProductAffected versionsFixed in
Wn530h4 FirmwareWavlinkm30h4.v5030.190403n/a

Timeline

  1. Publicly disclosed

    Oct 2, 2020

  2. Added to Industry KEV feed

    Mar 30, 2024

  3. Added to CIRCL KEV

    Mar 30, 2024

  4. Last updated

    Nov 21, 2024

Weakness Type

  • CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

References

7 more references in the full CVE brief

FAQ

Common Questions.

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