How severe is CVE-2022-28491?

CVE-2022-28491 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-2022-28491 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-28491?

CVE-2022-28491 affects Totolink Cp900 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-28491?

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-2022-28491 published?

CVE-2022-28491 was published on 2023-03-23 and last updated on 2026-06-17.

CVE-2022-28491

CVE-2022-28491 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. The underlying weakness is classified as CWE-78.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Totolink Cp900 Firmware
Published: 2023-03-23
Last modified: 2026-06-17

Description

TOTOLink outdoor CPE CP900 V6.3c.566_B20171026 contains a command injection vulnerability in the NTPSyncWithHost function via the host_name parameter. This vulnerability allows attackers to execute arbitrary commands via a crafted request.

Frequently asked questions

What is CVE-2022-28491?: TOTOLink outdoor CPE CP900 V6.3c.566_B20171026 contains a command injection vulnerability in the NTPSyncWithHost function via the host_name parameter. This vulnerability allows attackers to execute arbitrary commands via a crafted request.
How severe is CVE-2022-28491?: CVE-2022-28491 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-2022-28491 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-28491?: CVE-2022-28491 affects Totolink Cp900 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-28491?: 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-2022-28491 published?: CVE-2022-28491 was published on 2023-03-23 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:totolink:cp900_firmware:6.3c.566_b20171026:*:*:*:*:*:*:*

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