SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-21151

Certain NETGEAR devices are affected by a buffer overflow by an authenticated user.

MEDIUM 6.8EPSS 0.68%

Does this matter?

Lower severity and a low EPSS score (0.68%). Track it; it rarely justifies an emergency change on its own.

Description

Certain NETGEAR devices are affected by a buffer overflow by an authenticated user. This affects D7800 before 1.0.1.34, R7500v2 before 1.0.3.26, R7800 before 1.0.2.42, R8900 before 1.0.3.10, R9000 before 1.0.3.10, WNDR4300v2 before 1.0.0.54, and WNDR4500v3 before 1.0.0.54.

CVSS 3.1
6.8 MEDIUMCVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS
0.68% probability · 52th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-120
Affected
netgear/d7800 firmware · netgear/r7500 firmware · netgear/r7800 firmware · netgear/r8900 firmware · netgear/r9000 firmware · netgear/wndr4300 firmware · netgear/wndr4500 firmware
Source
cve@mitre.org
EPSS trend
0%3%5%27 October 2026: 0.68%27 October 202627 October 2026

EPSS 0.7% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.