CVE-2024-39773Public exploitNetwork attack vector

Unauthenticated system-log disclosure via executable script

Published Jan 14, 2025 · Updated Jan 14, 2025

Information disclosure in testsave.sh on Wavlink AC3000 M33A8.V5030.210505 allows remote attackers to read router system logs. Lighttpd executes the script directly from /www/cgi-bin, and testsave.sh returns /var/log/messages as a downloadable syslog.txt file. The endpoint requires no authentication, exposing log contents to any network client that can reach the router's web interface.

CVSS severity5.3
Medium
EPSS probability0.79%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in testsave.sh on Wavlink AC3000 M33A8.V5030.210505 allows remote attackers to read router system logs. Lighttpd executes the script directly from /www/cgi-bin, and testsave.sh returns /var/log/messages as a downloadable syslog.txt file. The endpoint requires no authentication, exposing log contents to any network client that can reach the router's web interface.

The record

CVE
CVE-2024-39773
Published
Jan 14, 2025
Updated
Jan 14, 2025
Vendor
Wavlink
Product
AC3000 Tri-band Wi-Fi Router
Classifications
CWE-306, T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 14, 2025CVE publishedPublication date reported by the CVE source.
  2. Jan 14, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=M33A8.V5030.210505

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Wavlink · AC3000 Tri-band Wi-Fi Routerversion=M33A8.V5030.210505

Published CVSS scores

5.3Cisco TalosCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
T1005Data from Local System

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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