How severe is CVE-2023-43757?

CVE-2023-43757 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-43757 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-43757?

CVE-2023-43757 primarily affects Elecom Wrc-2533ghbk2-t Firmware. In total, 34 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-43757?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-43757 published?

CVE-2023-43757 was published on 2023-11-16 and last updated on 2026-06-17.

CVE-2023-43757

CVE-2023-43757 is a medium-severity vulnerability in Elecom Wrc-2533ghbk2-t Firmware with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-326.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (39th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-326
Affected product: Elecom Wrc-2533ghbk2-t Firmware
Published: 2023-11-16
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2023-43757?: CVE-2023-43757 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-43757 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-43757?: CVE-2023-43757 primarily affects Elecom Wrc-2533ghbk2-t Firmware. In total, 34 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-43757?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-43757 published?: CVE-2023-43757 was published on 2023-11-16 and last updated on 2026-06-17.

References

Affected products (34)

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

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