CVE-2024-39760: Multiple OS command injection vulnerabilities exist in the login.cgi set_sys_init() functionality of Wavlink A

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CRITICAL 10.0REMOTEMITIGATE

CVE-2024-39760 is a critical-severity flaw (CVSS 10.0) affecting wl-wn533a8 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple OS command injection vulnerabilities exist in the login.cgi set_sys_init() functionality of Wavlink AC3000 M33A8.V5030.210505. A specially crafted HTTP request can lead to arbitrary code execution. An attacker can make an unauthenticated HTTP request to trigger these vulnerabilities.A command injection vulnerability exists within the `restart_min_value` POST parameter.

Why this priority

Critical severity
EPSS top 3%: very likely to be exploited
Public exploit reference
CISA SSVC: automatable with total technical impact
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	10.0 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	17.8% (top 3%)
CISA exploited list	No
Weakness	CWE-77
Published	2025-01-14
Last modified	2026-06-17

Publisher (CNA): Talos · Vendor: wavlink

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-01-14 15:15 UTCPublished CVE record published
2026-06-17 07:42 UTCUpdated Record last modified

wavlink wl-wn533a8 firmware MITIGATE

Affected: m33a8.v5030.210505

Fixed in: no fixed release known

Safe to downgrade to: a release before m33a8.v5030.210505

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Exact fixes by distribution

A distro patch exists: prefer upgrading over downgrading.

Fedora 46 · opensips · FIXED · 4.0.3-1.fc46 · FEDORA-2026-6700a0026c · source

sudo dnf upgrade --advisory=FEDORA-2026-6700a0026c

Fedora ELN · ibus-typing-booster · FIXED · 2.31.3-1.eln159 · FEDORA-2026-c895c68d60 · source

sudo dnf upgrade --advisory=FEDORA-2026-c895c68d60

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-39760?

wl-wn533a8 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2024-39760 being exploited?

CVE-2024-39760 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-39760 affect?

CVE-2024-39760 affects wl-wn533a8 firmware. Severity is critical (CVSS 10.0). Multiple OS command injection vulnerabilities exist in the login.cgi set_sys_init() functionality of Wavlink AC3000 M33A8.V5030.210505. A specially crafted HTTP request can lead to arbitrary code execution. An attacker can make an unauthent

How urgent is CVE-2024-39760?

Priority 72/100. Critical severity; EPSS top 3%: very likely to be exploited; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

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References

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