How severe is CVE-2022-28561?

CVE-2022-28561 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-2022-28561 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-28561?

CVE-2022-28561 affects Tenda Ax12 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-28561?

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-2022-28561 published?

CVE-2022-28561 was published on 2022-05-03 and last updated on 2026-06-17.

CVE-2022-28561

CVE-2022-28561 is a critical-severity vulnerability in Tenda Ax12 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-787.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 10% (95th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Tenda Ax12 Firmware
Published: 2022-05-03
Last modified: 2026-06-17

Description

There is a stack overflow vulnerability in the /goform/setMacFilterCfg function in the httpd service of Tenda ax12 22.03.01.21_cn router. An attacker can obtain a stable shell through a carefully constructed payload

Frequently asked questions

What is CVE-2022-28561?: There is a stack overflow vulnerability in the /goform/setMacFilterCfg function in the httpd service of Tenda ax12 22.03.01.21_cn router. An attacker can obtain a stable shell through a carefully constructed payload
How severe is CVE-2022-28561?: CVE-2022-28561 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-2022-28561 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-28561?: CVE-2022-28561 affects Tenda Ax12 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-28561?: 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-2022-28561 published?: CVE-2022-28561 was published on 2022-05-03 and last updated on 2026-06-17.

References

https://github.com/iot-firmeware/-Router-vulnerability/tree/main/AX12

Affected products (1)

cpe:2.3:o:tenda:ax12_firmware:22.03.01.21_cn:*:*:*:*:*:*:*

More vulnerabilities in Tenda Ax12 Firmware

CVE-2024-28383 — Critical (CVSS 9.8): Tenda AX12 v1.0 v22.03.01.16 was discovered to contain a stack overflow via the ssid parameter in the sub_431CF0…
CVE-2023-49437 — Critical (CVSS 9.8): Tenda AX12 V22.03.01.46 has been discovered to contain a command injection vulnerability in the 'list' parameter at…
CVE-2023-49428 — Critical (CVSS 9.8): Tenda AX12 V22.03.01.46 has been discovered to contain a command injection vulnerability in the 'mac' parameter at…
CVE-2023-49426 — Critical (CVSS 9.8): Tenda AX12 V22.03.01.46 was discovered to contain a stack overflow via the list parameter at /goform/SetStaticRouteCfg.
CVE-2023-49425 — Critical (CVSS 9.8): Tenda AX12 V22.03.01.46 was discovered to contain a stack overflow via the deviceList parameter at…
CVE-2023-49424 — Critical (CVSS 9.8): Tenda AX12 V22.03.01.46 was discovered to contain a stack overflow via the list parameter at…

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