How severe is CVE-2022-28493?

CVE-2022-28493 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-2022-28493 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-28493?

CVE-2022-28493 affects Totolink Cp900 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-28493?

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-2022-28493 published?

CVE-2022-28493 was published on 2023-03-23 and last updated on 2026-06-17.

CVE-2022-28493

CVE-2022-28493 is a critical-severity vulnerability in Totolink Cp900 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.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Totolink Cp900 Firmware
Published: 2023-03-23
Last modified: 2026-06-17

Description

A vulnerability in TOTOLINK CP900 V6.3c.566 allows attackers to start the Telnet service,

Frequently asked questions

What is CVE-2022-28493?: A vulnerability in TOTOLINK CP900 V6.3c.566 allows attackers to start the Telnet service,
How severe is CVE-2022-28493?: CVE-2022-28493 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-2022-28493 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-28493?: CVE-2022-28493 affects Totolink Cp900 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-28493?: 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-2022-28493 published?: CVE-2022-28493 was published on 2023-03-23 and last updated on 2026-06-17.

References

https://github.com/B2eFly/Router/blob/main/totolink/CP900/7/7.md

Affected products (1)

cpe:2.3:o:totolink:cp900_firmware:6.3c.566:*:*:*:*:*:*:*

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