CVE-2024-50998

Router crash via OpenVPN parameter stack overflow

Published Nov 5, 2024 · Updated Nov 5, 2024

Stack overflow in openvpn.cgi in NETGEAR R8500 Firmware 1.0.2.160 allows remote authenticated users to crash the router via a crafted POST request. The handler accepts openvpn_service_port and openvpn_service_port_tun values into stack storage without enforcing destination bounds. Reachability requires low privileges from an adjacent network, and exploitation interrupts router service without reported data disclosure or modification.

CVSS severity5.7
Medium
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack overflow in openvpn.cgi in NETGEAR R8500 Firmware 1.0.2.160 allows remote authenticated users to crash the router via a crafted POST request. The handler accepts openvpn_service_port and openvpn_service_port_tun values into stack storage without enforcing destination bounds. Reachability requires low privileges from an adjacent network, and exploitation interrupts router service without reported data disclosure or modification.

The record

CVE
CVE-2024-50998
Published
Nov 5, 2024
Updated
Nov 5, 2024
Vendor
NETGEAR
Product
NETGEAR R8500 Firmware
Classifications
CWE-120, T1499
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 5, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 5, 2024Record 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=1.0.2.160

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

NETGEAR · NETGEAR R8500 Firmwareversion=1.0.2.160

Published CVSS scores

5.7CISA-ADPCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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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