How severe is CVE-2022-45647?

CVE-2022-45647 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2022-45647 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-45647?

CVE-2022-45647 affects Tendacn Ac6 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-45647?

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-2022-45647 published?

CVE-2022-45647 was published on 2022-12-02 and last updated on 2026-06-17.

CVE-2022-45647

CVE-2022-45647 is a high-severity vulnerability in Tendacn Ac6 Firmware with a CVSS 3.x base score of 7.5. 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-120.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-120
Affected product: Tendacn Ac6 Firmware
Published: 2022-12-02
Last modified: 2026-06-17

Description

Tenda AC6V1.0 V15.03.05.19 was discovered to contain a buffer overflow via the limitSpeed parameter in the formSetClientState function.

Frequently asked questions

What is CVE-2022-45647?: Tenda AC6V1.0 V15.03.05.19 was discovered to contain a buffer overflow via the limitSpeed parameter in the formSetClientState function.
How severe is CVE-2022-45647?: CVE-2022-45647 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2022-45647 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-45647?: CVE-2022-45647 affects Tendacn Ac6 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-45647?: 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-2022-45647 published?: CVE-2022-45647 was published on 2022-12-02 and last updated on 2026-06-17.

References

https://github.com/Double-q1015/CVE-vulns/blob/main/tenda_ac6/formSetClientState_limitSpeed/formSetClientState_limitSpeed.md

Affected products (1)

cpe:2.3:o:tendacn:ac6_firmware:15.03.05.19:*:*:*:*:*:*:*

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CVE-2022-37176 — Critical (CVSS 9.8): Tenda AC6(AC1200) v5.0 Firmware v02.03.01.114 and below contains a vulnerability which allows attackers to remove the…
CVE-2020-13394 — Critical (CVSS 9.8): An issue was discovered on Tenda AC6 V1.0 V15.03.05.19_multi_TD01, AC9 V1.0 V15.03.05.19(6318)_CN, AC9 V3.0…
CVE-2020-13393 — Critical (CVSS 9.8): An issue was discovered on Tenda AC6 V1.0 V15.03.05.19_multi_TD01, AC9 V1.0 V15.03.05.19(6318)_CN, AC9 V3.0…
CVE-2020-13392 — Critical (CVSS 9.8): An issue was discovered on Tenda AC6 V1.0 V15.03.05.19_multi_TD01, AC9 V1.0 V15.03.05.19(6318)_CN, AC9 V3.0…
CVE-2020-13391 — Critical (CVSS 9.8): An issue was discovered on Tenda AC6 V1.0 V15.03.05.19_multi_TD01, AC9 V1.0 V15.03.05.19(6318)_CN, AC9 V3.0…
CVE-2020-13390 — Critical (CVSS 9.8): An issue was discovered on Tenda AC6 V1.0 V15.03.05.19_multi_TD01, AC9 V1.0 V15.03.05.19(6318)_CN, AC9 V3.0…

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