CVE-2024-54808Public exploitNetwork attack vector

Unauthenticated code execution via unbounded UPnP parsing

Published Mar 31, 2025 · Updated Apr 2, 2025

Stack-based buffer overflow in Netgear WNR854T 1.5.2 allows remote attackers to execute arbitrary code through a crafted UPnP request. The SetDefaultConnectionService handler applies unconstrained sscanf conversion to attacker-controlled L3Forwarding XML, overflowing a local stack buffer and permitting program-counter control. The unauthenticated UPnP service is WAN-exposed, although ASCII-only XML parsing and return-address constraints impede reliable code execution.

CVSS severity9.8
Critical
EPSS probability0.77%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based buffer overflow in Netgear WNR854T 1.5.2 allows remote attackers to execute arbitrary code through a crafted UPnP request. The SetDefaultConnectionService handler applies unconstrained sscanf conversion to attacker-controlled L3Forwarding XML, overflowing a local stack buffer and permitting program-counter control. The unauthenticated UPnP service is WAN-exposed, although ASCII-only XML parsing and return-address constraints impede reliable code execution.

The record

CVE
CVE-2024-54808
Published
Mar 31, 2025
Updated
Apr 2, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-121, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 31, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 2, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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-121Stack-based Buffer Overflow
T1190Exploit Public-Facing Application

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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