How severe is CVE-2022-38394?

CVE-2022-38394 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-2022-38394 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-38394?

CVE-2022-38394 affects Allied-telesis Centrecom Ar260s Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-38394?

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-2022-38394 published?

CVE-2022-38394 was published on 2022-09-08 and last updated on 2026-06-17.

CVE-2022-38394

CVE-2022-38394 is a critical-severity vulnerability in Allied-telesis Centrecom Ar260s 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-798.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (56th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-798
Affected product: Allied-telesis Centrecom Ar260s Firmware
Published: 2022-09-08
Last modified: 2026-06-17

Description

Use of hard-coded credentials for the telnet server of CentreCOM AR260S V2 firmware versions prior to Ver.3.3.7 allows a remote unauthenticated attacker to execute an arbitrary OS command.

Frequently asked questions

What is CVE-2022-38394?: Use of hard-coded credentials for the telnet server of CentreCOM AR260S V2 firmware versions prior to Ver.3.3.7 allows a remote unauthenticated attacker to execute an arbitrary OS command.
How severe is CVE-2022-38394?: CVE-2022-38394 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-2022-38394 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-38394?: CVE-2022-38394 affects Allied-telesis Centrecom Ar260s Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-38394?: 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-2022-38394 published?: CVE-2022-38394 was published on 2022-09-08 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:allied-telesis:centrecom_ar260s_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Allied-telesis Centrecom Ar260s Firmware

CVE-2022-38094 — High (CVSS 8.8): OS command injection vulnerability in the telnet function of CentreCOM AR260S V2 firmware versions prior to Ver.3.3.7…
CVE-2022-35273 — High (CVSS 8.8): OS command injection vulnerability in GUI setting page of CentreCOM AR260S V2 firmware versions prior to Ver.3.3.7…
CVE-2022-34869 — High (CVSS 8.8): Undocumented hidden command that can be executed from the telnet function of CentreCOM AR260S V2 firmware versions…

All CVEs affecting Allied-telesis Centrecom Ar260s Firmware →

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