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VulnerabilityPublished

CVE-2024-51011: Netgear XR300 · Classic Buffer Overflow

Source CVE Database V5

0

Not known to be exploited · CVSS 5.7 Medium.

Data as of 26 Oct 2026, 16:39 UTC

CVSS 3.1 base score
5.7Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 23% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 5 Nov 2024

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

AI-suggested

  1. Network Segmentation: Restrict access to the router management interfaces and services like pppoe.cgi to trusted network segments and authorized personnel only, minimizing exposure to potential attackers.
  2. Access Controls: Enforce strong authentication and limit user privileges to reduce the risk of low-privilege attackers exploiting the vulnerability.
  3. Monitoring and Logging: Enable detailed logging on affected devices to detect unusual POST requests targeting the pppoe_localip parameter and monitor for signs of service crashes or reboots.
  4. Firmware Updates: Regularly check Netgear’s official channels for firmware updates or patches addressing this vulnerability and apply them promptly once available.
  5. Temporary Workarounds: If possible, disable or restrict the PPPoE service or the vulnerable CGI endpoint until a patch is released, balancing operational needs with security.
  6. Incident Response Planning: Prepare to quickly respond to potential DoS incidents by having backup connectivity options and recovery procedures in place.
  7. Vendor Engagement: Contact Netgear support for guidance and to express urgency for a patch if not yet released. These steps go beyond generic advice by focusing on limiting exposure to the vulnerable interface, proactive detection, and operational continuity.

Description

Netgear XR300 v1.0.3.78, R7000P v1.3.3.154, and R6400 v2 1.0.4.128 was discovered to contain a stack overflow via the pppoe_localip parameter at pppoe.cgi. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted POST request.

References

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