What is CVE-2024-52026?

CVE-2024-52026 is a medium-severity vulnerability in NETGEAR R6400v2, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 5.7/10. Published 2024-11-05.

How severe is CVE-2024-52026?

Medium severity. CVSS v3 base score is 5.7 out of 10.

Buffer overflow in NETGEAR R6400v2

CVE-2024-52026

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 bsw_pppoe.cgi. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted POST request.

Vulnerability class: Buffer Overflow

Published 2024-11-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.7 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.003 (21.6th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 21.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

NETGEAR R6400v2
NETGEAR R6400v2 Firmware — versions 1.0.4.128
NETGEAR R7000p
NETGEAR R7000p Firmware — versions 1.3.3.154
NETGEAR Xr300
NETGEAR Xr300 Firmware — versions 1.0.3.78

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

www.netgear.com/about/security/ (Vendor Advisory)
github.com/wudipjq/my_vuln/blob/main/Netgear5/vuln_52/52.md (Broken Link)

Frequently asked questions

What is CVE-2024-52026?: CVE-2024-52026 is a medium-severity vulnerability in NETGEAR R6400v2, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 5.7/10. Published 2024-11-05.
How severe is CVE-2024-52026?: Medium severity. CVSS v3 base score is 5.7 out of 10.