How severe is CVE-2021-44352?

CVE-2021-44352 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-2021-44352 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 13% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-44352?

CVE-2021-44352 affects Tendacn Ac15 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-44352?

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-2021-44352 published?

CVE-2021-44352 was published on 2021-12-03 and last updated on 2026-06-17.

CVE-2021-44352

CVE-2021-44352 is a critical-severity vulnerability in Tendacn Ac15 Firmware with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 13% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-787.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 13% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Tendacn Ac15 Firmware
Published: 2021-12-03
Last modified: 2026-06-17

Description

A Stack-based Buffer Overflow vulnerability exists in the Tenda AC15 V15.03.05.18_multi device via the list parameter in a post request in goform/SetIpMacBind.

Frequently asked questions

What is CVE-2021-44352?: A Stack-based Buffer Overflow vulnerability exists in the Tenda AC15 V15.03.05.18_multi device via the list parameter in a post request in goform/SetIpMacBind.
How severe is CVE-2021-44352?: CVE-2021-44352 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-2021-44352 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 13% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-44352?: CVE-2021-44352 affects Tendacn Ac15 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-44352?: 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-2021-44352 published?: CVE-2021-44352 was published on 2021-12-03 and last updated on 2026-06-17.

References

https://github.com/zhlu32/cve/blob/main/tenda/Tenda-ac15-buffer-overflow.md

Affected products (1)

cpe:2.3:o:tendacn:ac15_firmware:15.03.05.18_multi:*:*:*:*:*:*:*

More vulnerabilities in Tendacn Ac15 Firmware

CVE-2022-40869 — Critical (CVSS 9.8): Tenda AC15 and AC18 routers V15.03.05.19 contain stack overflow vulnerabilities in the function fromDhcpListClient with…
CVE-2022-40865 — Critical (CVSS 9.8): Tenda AC15 and AC18 routers V15.03.05.19 contain heap overflow vulnerabilities in the function setSchedWifi with the…
CVE-2022-40864 — Critical (CVSS 9.8): Tenda AC15 and AC18 routers V15.03.05.19 contain stack overflow vulnerabilities in the function setSmartPowerManagement…
CVE-2022-40862 — Critical (CVSS 9.8): Tenda AC15 and AC18 router V15.03.05.19 contains stack overflow vulnerability in the function fromNatStaticSetting with…
CVE-2022-40860 — Critical (CVSS 9.8): Tenda AC15 router V15.03.05.19 contains a stack overflow vulnerability in the function formSetQosBand->FUN_0007dd20…
CVE-2022-40853 — Critical (CVSS 9.8): Tenda AC15 router V15.03.05.19 contains a stack overflow via the list parameter at /goform/fast_setting_wifi_set

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