CVE-2023-36187

Buffer Overflow vulnerability in NETGEAR R6400v2 before version 1.0.4.118, allows remote unauthenticated attackers to execute arbitrary code via crafted URL to httpd.

Published: 2023-09-01 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-36187 is rated Moderate Risk (53.9/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 0.94%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-36187

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 5.93% 0.94% -4.99%
2 2026-05-27 4.54% 5.93% +1.40%
3 2025-11-21 — 4.54% —

Full EPSS history (14 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-36187

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]

Weakness enumeration for CVE-2023-36187

Affected software / configurations for CVE-2023-36187

Vendor Product Version Raw CPE
netgear cbr40_firmware < 2.5.0.24 cpe:2.3:o:netgear:cbr40_firmware:*:*:*:*:*:*:*:*
netgear lax20_firmware < 1.1.6.34 cpe:2.3:o:netgear:lax20_firmware:*:*:*:*:*:*:*:*
netgear mk62_firmware < 1.1.6.122 cpe:2.3:o:netgear:mk62_firmware:*:*:*:*:*:*:*:*
netgear mr60_firmware < 1.1.6.122 cpe:2.3:o:netgear:mr60_firmware:*:*:*:*:*:*:*:*
netgear ms60_firmware < 1.1.6.122 cpe:2.3:o:netgear:ms60_firmware:*:*:*:*:*:*:*:*
netgear rbw30_firmware < 2.6.2.6 cpe:2.3:o:netgear:rbw30_firmware:*:*:*:*:*:*:*:*
netgear r6400_firmware < 1.0.1.70 cpe:2.3:o:netgear:r6400_firmware:*:*:*:*:*:*:*:*
netgear r6400v2_firmware < 1.0.4.118 cpe:2.3:o:netgear:r6400v2_firmware:*:*:*:*:*:*:*:*
netgear r6700v3_firmware < 1.0.4.118 cpe:2.3:o:netgear:r6700v3_firmware:*:*:*:*:*:*:*:*
netgear r7000_firmware < 1.0.11.130 cpe:2.3:o:netgear:r7000_firmware:*:*:*:*:*:*:*:*
netgear r7000p_firmware < 1.3.3.148 cpe:2.3:o:netgear:r7000p_firmware:*:*:*:*:*:*:*:*
netgear rax200_firmware < 1.0.4.120 cpe:2.3:o:netgear:rax200_firmware:*:*:*:*:*:*:*:*
netgear rax75_firmware < 1.0.4.120 cpe:2.3:o:netgear:rax75_firmware:*:*:*:*:*:*:*:*
netgear rax80_firmware < 1.0.4.120 cpe:2.3:o:netgear:rax80_firmware:*:*:*:*:*:*:*:*
netgear rs400_firmware < 1.5.1.86 cpe:2.3:o:netgear:rs400_firmware:*:*:*:*:*:*:*:*

References for CVE-2023-36187

cvelogic Threat Intelligence