How severe is CVE-2022-28560?

CVE-2022-28560 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-2022-28560 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-28560?

CVE-2022-28560 affects Tenda Ac9 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-28560?

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-2022-28560 published?

CVE-2022-28560 was published on 2022-05-03 and last updated on 2026-06-17.

CVE-2022-28560

CVE-2022-28560 is a critical-severity vulnerability in Tenda Ac9 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: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Tenda Ac9 Firmware
Published: 2022-05-03
Last modified: 2026-06-17

Description

There is a stack overflow vulnerability in the goform/fast_setting_wifi_set function in the httpd service of Tenda ac9 15.03.2.21_cn router. An attacker can obtain a stable shell through a carefully constructed payload

Frequently asked questions

What is CVE-2022-28560?: There is a stack overflow vulnerability in the goform/fast_setting_wifi_set function in the httpd service of Tenda ac9 15.03.2.21_cn router. An attacker can obtain a stable shell through a carefully constructed payload
How severe is CVE-2022-28560?: CVE-2022-28560 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-2022-28560 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-28560?: CVE-2022-28560 affects Tenda Ac9 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-28560?: 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-2022-28560 published?: CVE-2022-28560 was published on 2022-05-03 and last updated on 2026-06-17.

References

https://github.com/iot-firmeware/-Router-vulnerability/tree/main/Tenda%20AC9

Affected products (1)

cpe:2.3:o:tenda:ac9_firmware:15.03.2.21_cn:*:*:*:*:*:*:*

More vulnerabilities in Tenda Ac9 Firmware

CVE-2025-45042 — Critical (CVSS 9.8): Tenda AC9 v15.03.05.14 was discovered to contain a command injection vulnerability via the Telnet function.
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CVE-2025-44872 — Critical (CVSS 9.8): Tenda AC9 V15.03.06.42_multi was found to contain a command injection vulnerability in the formsetUsbUnload function…
CVE-2025-45429 — Critical (CVSS 9.8): In the Tenda ac9 v1.0 router with firmware V15.03.05.14_multi, there is a stack overflow vulnerability in…
CVE-2025-45428 — Critical (CVSS 9.8): In Tenda ac9 v1.0 with firmware V15.03.05.14_multi, the rebootTime parameter of /goform/SetSysAutoRebbotCfg has a stack…
CVE-2025-45427 — Critical (CVSS 9.8): In Tenda AC9 v1.0 with firmware V15.03.05.14_multi, the security parameter of /goform/WifiBasicSet has a stack overflow…

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