How severe is CVE-2022-25008?

CVE-2022-25008 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-25008 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-25008?

CVE-2022-25008 primarily affects Totolink Ex300 V2 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-25008?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2022-25008 published?

CVE-2022-25008 was published on 2022-03-30 and last updated on 2026-06-17.

CVE-2022-25008

CVE-2022-25008 is a high-severity vulnerability in Totolink Ex300 V2 Firmware with a CVSS 3.x base score of 8.8. 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-306.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 5.8
EPSS exploit prediction: 4% (90th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-306
Affected product: Totolink Ex300 V2 Firmware
Published: 2022-03-30
Last modified: 2026-06-17

Description

totolink EX300_v2 V4.0.3c.140_B20210429 and EX1200T V4.1.2cu.5230_B20210706 does not contain an authentication mechanism.

Frequently asked questions

What is CVE-2022-25008?: totolink EX300_v2 V4.0.3c.140_B20210429 and EX1200T V4.1.2cu.5230_B20210706 does not contain an authentication mechanism.
How severe is CVE-2022-25008?: CVE-2022-25008 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-25008 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-25008?: CVE-2022-25008 primarily affects Totolink Ex300 V2 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-25008?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2022-25008 published?: CVE-2022-25008 was published on 2022-03-30 and last updated on 2026-06-17.

References

https://github.com/chibataiki/iot-vuls/blob/main/totolink/missing-authentication.md

Affected products (2)

cpe:2.3:o:totolink:ex300_v2_firmware:4.0.3c.140_b20210429:*:*:*:*:*:*:*
cpe:2.3:o:totolink:ex1200t_firmware:4.1.2cu.5230_b20210706:*:*:*:*:*:*:*

More vulnerabilities in Totolink Ex300 V2 Firmware

CVE-2022-32449 — Critical (CVSS 9.8): TOTOLINK EX300_V2 V4.0.3c.7484 was discovered to contain a command injection vulnerability via the langType parameter…
CVE-2021-43664 — High (CVSS 8.1): totolink EX300_v2 V4.0.3c.140_B20210429 was discovered to contain a command injection vulnerability via the component…
CVE-2021-43663 — High (CVSS 7.5): totolink EX300_v2 V4.0.3c.140_B20210429 was discovered to contain a command injection vulnerability via the component…
CVE-2021-43662 — Medium (CVSS 6.5): totolink EX300_v2, ver V4.0.3c.140_B20210429 and A720R ,ver V4.1.5cu.470_B20200911 have an issue which causes…
CVE-2021-43661 — Medium (CVSS 6.1): totolink EX300_v2 V4.0.3c.140_B20210429 was discovered to contain a reflected cross-site scripting (XSS) vulnerability…

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