CVE-2023-43757

Inadequate encryption strength vulnerability in multiple routers provided by ELECOM CO.,LTD. and LOGITEC CORPORATION allows a network-adjacent unauthenticated attacker to guess the encryption key used for wireless LAN communication and intercept the communication. As for the affected products/versions, see the information provided by the vendor under [References] section.

Published: 2023-11-16 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-43757 is rated Low Risk (39.9/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.50%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

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-2023-43757

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 0.04% 0.50% +0.45%
2 2025-11-21 0.07% 0.04% -0.03%
3 2025-11-18 — 0.07% —

Full EPSS history (15 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-43757

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.1 MEDIUM
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:A)
Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet.
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:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 3.6 [email protected]

Weakness enumeration for CVE-2023-43757

Affected software / configurations for CVE-2023-43757

Vendor Product Version Raw CPE
elecom wrc-2533ghbk2-t_firmware — cpe:2.3:o:elecom:wrc-2533ghbk2-t_firmware:-:*:*:*:*:*:*:*
elecom wrc-2533ghbk-i_firmware — cpe:2.3:o:elecom:wrc-2533ghbk-i_firmware:-:*:*:*:*:*:*:*
elecom wrc-1750ghbk2-i_firmware — cpe:2.3:o:elecom:wrc-1750ghbk2-i_firmware:-:*:*:*:*:*:*:*
elecom wrc-1750ghbk-e_firmware — cpe:2.3:o:elecom:wrc-1750ghbk-e_firmware:-:*:*:*:*:*:*:*
elecom wrc-1750ghbk_firmware — cpe:2.3:o:elecom:wrc-1750ghbk_firmware:-:*:*:*:*:*:*:*
elecom wrc-1167ghbk2_firmware — cpe:2.3:o:elecom:wrc-1167ghbk2_firmware:-:*:*:*:*:*:*:*
elecom wrc-1167ghbk_firmware — cpe:2.3:o:elecom:wrc-1167ghbk_firmware:-:*:*:*:*:*:*:*
elecom wrc-f1167acf_firmware — cpe:2.3:o:elecom:wrc-f1167acf_firmware:-:*:*:*:*:*:*:*
elecom wrc-733ghbk_firmware — cpe:2.3:o:elecom:wrc-733ghbk_firmware:-:*:*:*:*:*:*:*
elecom wrc-733ghbk-i_firmware — cpe:2.3:o:elecom:wrc-733ghbk-i_firmware:-:*:*:*:*:*:*:*
elecom wrc-733ghbk-c_firmware — cpe:2.3:o:elecom:wrc-733ghbk-c_firmware:-:*:*:*:*:*:*:*
elecom wrc-300ghbk2-i_firmware — cpe:2.3:o:elecom:wrc-300ghbk2-i_firmware:-:*:*:*:*:*:*:*
elecom wrc-300ghbk_firmware — cpe:2.3:o:elecom:wrc-300ghbk_firmware:-:*:*:*:*:*:*:*
elecom wrc-733febk_firmware — cpe:2.3:o:elecom:wrc-733febk_firmware:-:*:*:*:*:*:*:*
elecom wrc-300febk_firmware — cpe:2.3:o:elecom:wrc-300febk_firmware:-:*:*:*:*:*:*:*
elecom wrc-f300nf_firmware — cpe:2.3:o:elecom:wrc-f300nf_firmware:-:*:*:*:*:*:*:*
elecom wrh-300wh-h_firmware — cpe:2.3:o:elecom:wrh-300wh-h_firmware:-:*:*:*:*:*:*:*
elecom wrh-300bk_firmware — cpe:2.3:o:elecom:wrh-300bk_firmware:-:*:*:*:*:*:*:*
elecom wrh-300wh_firmware — cpe:2.3:o:elecom:wrh-300wh_firmware:-:*:*:*:*:*:*:*
elecom wrh-300rd_firmware — cpe:2.3:o:elecom:wrh-300rd_firmware:-:*:*:*:*:*:*:*
elecom wrh-300sv_firmware — cpe:2.3:o:elecom:wrh-300sv_firmware:-:*:*:*:*:*:*:*
elecom wrh-300bk-s_firmware — cpe:2.3:o:elecom:wrh-300bk-s_firmware:-:*:*:*:*:*:*:*
elecom wrh-300wh-s_firmware — cpe:2.3:o:elecom:wrh-300wh-s_firmware:-:*:*:*:*:*:*:*
elecom wrh-300bk2-s_firmware — cpe:2.3:o:elecom:wrh-300bk2-s_firmware:-:*:*:*:*:*:*:*
elecom wrh-300wh2-s_firmware — cpe:2.3:o:elecom:wrh-300wh2-s_firmware:-:*:*:*:*:*:*:*
elecom wrh-h300bk_firmware — cpe:2.3:o:elecom:wrh-h300bk_firmware:-:*:*:*:*:*:*:*
elecom wrh-h300wh_firmware — cpe:2.3:o:elecom:wrh-h300wh_firmware:-:*:*:*:*:*:*:*
elecom wrh-150bk_firmware — cpe:2.3:o:elecom:wrh-150bk_firmware:-:*:*:*:*:*:*:*
elecom wrh-150wh_firmware — cpe:2.3:o:elecom:wrh-150wh_firmware:-:*:*:*:*:*:*:*
elecom lan-w300n\/rs_firmware — cpe:2.3:o:elecom:lan-w300n\/rs_firmware:-:*:*:*:*:*:*:*
elecom lan-w301nr_firmware — cpe:2.3:o:elecom:lan-w301nr_firmware:-:*:*:*:*:*:*:*
elecom lan-w300n\/p_firmware — cpe:2.3:o:elecom:lan-w300n\/p_firmware:-:*:*:*:*:*:*:*
elecom lan-wh300n\/dgp_firmware — cpe:2.3:o:elecom:lan-wh300n\/dgp_firmware:-:*:*:*:*:*:*:*
elecom lan-wh300ndgpe_firmware — cpe:2.3:o:elecom:lan-wh300ndgpe_firmware:-:*:*:*:*:*:*:*

References for CVE-2023-43757

cvelogic Threat Intelligence