How severe is CVE-2023-40069?

CVE-2023-40069 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-40069 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-40069?

CVE-2023-40069 primarily affects Elecom Wrc-f1167acf Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-40069?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2023-40069 published?

CVE-2023-40069 was published on 2023-08-18 and last updated on 2026-06-17.

CVE-2023-40069

CVE-2023-40069 is a critical-severity vulnerability in Elecom Wrc-f1167acf Firmware with a CVSS 3.x base score of 9.8. 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-78.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (71st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Elecom Wrc-f1167acf Firmware
Published: 2023-08-18
Last modified: 2026-06-17

Description

OS command injection vulnerability in ELECOM wireless LAN routers allows an attacker who can access the product to execute an arbitrary OS command by sending a specially crafted request. Affected products and versions are as follows: WRC-F1167ACF all versions, WRC-1750GHBK all versions, WRC-1167GHBK2 all versions, WRC-1750GHBK2-I all versions, and WRC-1750GHBK-E all versions.

Frequently asked questions

What is CVE-2023-40069?: OS command injection vulnerability in ELECOM wireless LAN routers allows an attacker who can access the product to execute an arbitrary OS command by sending a specially crafted request. Affected products and versions are as follows: WRC-F1167ACF all versions, WRC-1750GHBK all versions, WRC-1167GHBK2 all versions, WRC-1750GHBK2-I all versions, and WRC-1750GHBK-E all versions.
How severe is CVE-2023-40069?: CVE-2023-40069 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-40069 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-40069?: CVE-2023-40069 primarily affects Elecom Wrc-f1167acf Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-40069?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2023-40069 published?: CVE-2023-40069 was published on 2023-08-18 and last updated on 2026-06-17.

References

Affected products (5)

cpe:2.3:o:elecom:wrc-f1167acf_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:elecom:wrc-1750ghbk_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:elecom:wrc-1167ghbk2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:elecom:wrc-1750ghbk2-i_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:elecom:wrc-1750ghbk-e_firmware:*:*:*:*:*:*:*:*

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