How severe is CVE-2022-38308?

CVE-2022-38308 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-2022-38308 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 21% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-38308?

CVE-2022-38308 affects Totolink A7000ru Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-38308?

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-2022-38308 published?

CVE-2022-38308 was published on 2022-09-14 and last updated on 2026-06-17.

CVE-2022-38308

CVE-2022-38308 is a critical-severity vulnerability in Totolink A7000ru Firmware with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 21% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-78.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 21% (98th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Totolink A7000ru Firmware
Published: 2022-09-14
Last modified: 2026-06-17

Description

TOTOLink A700RU V7.4cu.2313_B20191024 was discovered to contain a command injection vulnerability via the lang parameter in the function cstesystem. This vulnerability allows attackers to execute arbitrary commands via a crafted payload.

Frequently asked questions

What is CVE-2022-38308?: TOTOLink A700RU V7.4cu.2313_B20191024 was discovered to contain a command injection vulnerability via the lang parameter in the function cstesystem. This vulnerability allows attackers to execute arbitrary commands via a crafted payload.
How severe is CVE-2022-38308?: CVE-2022-38308 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-2022-38308 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 21% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-38308?: CVE-2022-38308 affects Totolink A7000ru Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-38308?: 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-2022-38308 published?: CVE-2022-38308 was published on 2022-09-14 and last updated on 2026-06-17.

References

https://github.com/WhoisZkuan/TOTOlink-A700RU

Affected products (1)

cpe:2.3:o:totolink:a7000ru_firmware:7.4cu.2313_b20191024:*:*:*:*:*:*:*

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