CVE-2023-39455

OS command injection vulnerability in ELECOM wireless LAN routers allows an authenticated user to execute an arbitrary OS command by sending a specially crafted request. Affected products and versions are as follows: WRC-600GHBK-A all versions, WRC-1467GHBK-A all versions, WRC-1900GHBK-A all versions, WRC-733FEBK2-A all versions, WRC-F1167ACF2 all versions, WRC-1467GHBK-S all versions, and WRC-1900GHBK-S all versions.

Published: 2023-08-18 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-39455 is rated Moderate Risk (63.4/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.43%). 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-2023-39455

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 2026-05-13 1.52% 1.43% -0.08%
2 2025-11-21 5.81% 1.52% -4.29%
3 2025-11-18 — 5.81% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-39455

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/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:L)
A normal user session is enough; they don’t have to be admin.
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.
 2.8 5.9 [email protected]

Weakness enumeration for CVE-2023-39455

Affected software / configurations for CVE-2023-39455

Vendor Product Version Raw CPE
elecom wrc-600ghbk-a_firmware — cpe:2.3:o:elecom:wrc-600ghbk-a_firmware:*:*:*:*:*:*:*:*
elecom wrc-1467ghbk-a_firmware — cpe:2.3:o:elecom:wrc-1467ghbk-a_firmware:*:*:*:*:*:*:*:*
elecom wrc-1900ghbk-a_firmware — cpe:2.3:o:elecom:wrc-1900ghbk-a_firmware:*:*:*:*:*:*:*:*
elecom wrc-733febk2-a_firmware — cpe:2.3:o:elecom:wrc-733febk2-a_firmware:*:*:*:*:*:*:*:*
elecom wrc-f1167acf2_firmware — cpe:2.3:o:elecom:wrc-f1167acf2_firmware:*:*:*:*:*:*:*:*
elecom wrc-1467ghbk-s_firmware — cpe:2.3:o:elecom:wrc-1467ghbk-s_firmware:*:*:*:*:*:*:*:*
elecom wrc-1900ghbk-s_firmware — cpe:2.3:o:elecom:wrc-1900ghbk-s_firmware:*:*:*:*:*:*:*:*

References for CVE-2023-39455

cvelogic Threat Intelligence