CVE-2024-54803: Netgear WNR854T 1.5.2 (North America) is vulnerable to Command Injection

This week

CRITICAL 9.8REMOTEMITIGATE

CVE-2024-54803 is a critical-severity flaw (CVSS 9.8) affecting wnr854t firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Netgear WNR854T 1.5.2 (North America) is vulnerable to Command Injection. An attacker can send a specially crafted request to post.cgi, updating the nvram parameter pppoe_peer_mac and forcing a reboot. This will result in command injection.

Why this priority

Critical severity
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	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.7% (top 23%)
CISA exploited list	No
Weakness	CWE-94
Published	2025-03-31
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: netgear

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

Am I affected?

Timeline

2025-03-31 21:15 UTCPublished CVE record published
2026-06-17 08:10 UTCUpdated Record last modified

netgear wnr854t firmware MITIGATE

Affected: 1.5.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.5.2

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

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

Fedora 46 · perl-WWW-OrangeHRM-Client · FIXED · 0.12.0-21.fc46 · FEDORA-2026-2d14efca09 · source

sudo dnf upgrade --advisory=FEDORA-2026-2d14efca09

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Write-up: faultpoint.com/post/2025-03-25-8-cves-on-the-wnr854t-junkyard/#803

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-2024-54803?

wnr854t firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2024-54803 being exploited?

CVE-2024-54803 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-2024-54803 affect?

CVE-2024-54803 affects wnr854t firmware. Severity is critical (CVSS 9.8). Netgear WNR854T 1.5.2 (North America) is vulnerable to Command Injection. An attacker can send a specially crafted request to post.cgi, updating the nvram parameter pppoe_peer_mac and forcing a reboot. This will result in command injection.

How urgent is CVE-2024-54803?

Priority 67/100. Critical severity; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

Software pages

Netgear vulnerabilities

Related CVEs

CVE-2024-54809 CRITICAL 9.8 MITIGATE Netgear Inc WNR854T 1.5.2 (North America) contains a stack-based buffer overflow vulnerability in the parse_st
CVE-2024-54808 CRITICAL 9.8 MITIGATE Netgear WNR854T 1.5.2 (North America) contains a stack-based buffer overflow vulnerability in the SetDefaultCo
CVE-2024-54807 CRITICAL 9.8 MITIGATE In Netgear WNR854T 1.5.2 (North America), the UPNP service is vulnerable to command injection in the function
CVE-2024-54806 CRITICAL 9.8 MITIGATE Netgear WNR854T 1.5.2 (North America) is vulnerable to Arbitrary command execution in cmd.cgi which allows for
CVE-2024-54805 CRITICAL 9.8 MITIGATE Netgear WNR854T 1.5.2 (North America) is vulnerable to Command Injection

References

← Back to latest CVEs