CVE-2024-54809: Netgear Inc WNR854T 1.5.2 (North America) contains a stack-based buffer overflow vulnerability in the parse_st

This week

CRITICAL 9.8REMOTEMITIGATE

CVE-2024-54809 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 Inc WNR854T 1.5.2 (North America) contains a stack-based buffer overflow vulnerability in the parse_st_header function due to use of a request header parameter in a strncpy where size is determined based on the input specified. By sending a specially crafted packet, an attacker can take control of the program counter and hijack control flow of the program to execute arbitrary system commands.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.7% (top 48%)
CISA exploited list	No
Weakness	CWE-121
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.

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-2024-54809?

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

Is CVE-2024-54809 being exploited?

CVE-2024-54809 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-2024-54809 affect?

CVE-2024-54809 affects wnr854t firmware. Severity is critical (CVSS 9.8). Netgear Inc WNR854T 1.5.2 (North America) contains a stack-based buffer overflow vulnerability in the parse_st_header function due to use of a request header parameter in a strncpy where size is determined based on the input specified. By s

How urgent is CVE-2024-54809?

Priority 57/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

Netgear vulnerabilities

Related CVEs

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
CVE-2024-54804 CRITICAL 9.8 MITIGATE Netgear WNR854T 1.5.2 (North America) is vulnerable to Command Injection

References

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