How severe is CVE-2022-28577?

CVE-2022-28577 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-2022-28577 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-28577?

CVE-2022-28577 affects Totolink A7100ru Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-28577?

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-2022-28577 published?

CVE-2022-28577 was published on 2022-05-05 and last updated on 2026-06-17.

CVE-2022-28577

CVE-2022-28577 is a critical-severity vulnerability in Totolink A7100ru 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)
CVSS v2: 10.0
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Totolink A7100ru Firmware
Published: 2022-05-05
Last modified: 2026-06-17

Description

It is found that there is a command injection vulnerability in the delParentalRules interface in TOTOlink A7100RU (v7.4cu.2313_b20191024) router, which allows an attacker to execute arbitrary commands through a carefully constructed payload.

Frequently asked questions

What is CVE-2022-28577?: It is found that there is a command injection vulnerability in the delParentalRules interface in TOTOlink A7100RU (v7.4cu.2313_b20191024) router, which allows an attacker to execute arbitrary commands through a carefully constructed payload.
How severe is CVE-2022-28577?: CVE-2022-28577 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-2022-28577 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-28577?: CVE-2022-28577 affects Totolink A7100ru Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-28577?: 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-2022-28577 published?: CVE-2022-28577 was published on 2022-05-05 and last updated on 2026-06-17.

References

https://github.com/EPhaha/IOT_vuln/tree/main/TOTOLink/A7100RU/3

Affected products (1)

cpe:2.3:o:totolink:a7100ru_firmware:7.4cu.2313_b20191024:*:*:*:*:*:*:*

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