How severe is CVE-2021-28936?

CVE-2021-28936 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 high, and availability none.

Is CVE-2021-28936 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-28936?

CVE-2021-28936 affects Acexy Wireless-n Wifi Repeater Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-28936?

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-2021-28936 published?

CVE-2021-28936 was published on 2021-03-29 and last updated on 2026-07-05.

CVE-2021-28936

CVE-2021-28936 is a high-severity vulnerability in Acexy Wireless-n Wifi Repeater 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-863.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-863
Affected product: Acexy Wireless-n Wifi Repeater Firmware
Published: 2021-03-29
Last modified: 2026-07-05

Description

The Acexy Wireless-N WiFi Repeater REV 1.0 (28.08.06.1) Web management administrator password can be changed by sending a specially crafted HTTP GET request. The administrator username has to be known (default:admin) whereas no previous authentication is required.

Frequently asked questions

What is CVE-2021-28936?: The Acexy Wireless-N WiFi Repeater REV 1.0 (28.08.06.1) Web management administrator password can be changed by sending a specially crafted HTTP GET request. The administrator username has to be known (default:admin) whereas no previous authentication is required.
How severe is CVE-2021-28936?: CVE-2021-28936 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 high, and availability none.
Is CVE-2021-28936 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-28936?: CVE-2021-28936 affects Acexy Wireless-n Wifi Repeater Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-28936?: 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-2021-28936 published?: CVE-2021-28936 was published on 2021-03-29 and last updated on 2026-07-05.

References

Affected products (1)

cpe:2.3:o:acexy:wireless-n_wifi_repeater_firmware:28.08.06.1:*:*:*:*:*:*:*

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