How severe is CVE-2021-44260?

CVE-2021-44260 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 high, integrity none, and availability none.

Is CVE-2021-44260 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-44260?

CVE-2021-44260 affects Wavlink Wl-wn531g3 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-44260?

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-2021-44260 published?

CVE-2021-44260 was published on 2022-03-17 and last updated on 2026-06-17.

CVE-2021-44260

CVE-2021-44260 is a high-severity vulnerability in Wavlink Wl-wn531g3 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-306.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 8% (94th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-306
Affected product: Wavlink Wl-wn531g3 Firmware
Published: 2022-03-17
Last modified: 2026-06-17

Description

A vulnerability is in the 'live_mfg.html' page of the WAVLINK AC1200, version WAVLINK-A42W-1.27.6-20180418, which can allow a remote attacker to access this page without any authentication. When processed, it exposes some key information of the manager of router.

Frequently asked questions

What is CVE-2021-44260?: A vulnerability is in the 'live_mfg.html' page of the WAVLINK AC1200, version WAVLINK-A42W-1.27.6-20180418, which can allow a remote attacker to access this page without any authentication. When processed, it exposes some key information of the manager of router.
How severe is CVE-2021-44260?: CVE-2021-44260 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 high, integrity none, and availability none.
Is CVE-2021-44260 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-44260?: CVE-2021-44260 affects Wavlink Wl-wn531g3 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-44260?: 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-2021-44260 published?: CVE-2021-44260 was published on 2022-03-17 and last updated on 2026-06-17.

References

https://github.com/zer0yu/CVE_Request/blob/master/WAVLINK/WAVLINK_AC1200_unauthorized_access_vulnerability_first.md

Affected products (1)

cpe:2.3:o:wavlink:wl-wn531g3_firmware:a42w-1.27.6-20180418:*:*:*:*:*:*:*

More vulnerabilities in Wavlink Wl-wn531g3 Firmware

CVE-2021-44259 — Critical (CVSS 9.8): A vulnerability is in the 'wx.html' page of the WAVLINK AC1200, version WAVLINK-A42W-1.27.6-20180418, which can allow a…
CVE-2022-44356 — High (CVSS 7.5): WAVLINK Quantum D4G (WL-WN531G3) running firmware versions M31G3.V5030.201204 and M31G3.V5030.200325 has an access…

All CVEs affecting Wavlink Wl-wn531g3 Firmware →

Other CWE-306 (Missing Authentication for Critical Function) vulnerabilities

CVE-2026-54309 — Critical (CVSS 10.0): n8n is an open source workflow automation platform. Prior to 2.25.7 and 2.26.2, when @n8n/mcp-browser is run in HTTP…
CVE-2026-50242 — Critical (CVSS 10.0): In JetBrains Hub before 2026.1.13757, 2025.3.148033, 2025.2.148048, 2025.1.148120, 2024.3.148430, 2024.2.148429…
CVE-2026-49257 — Critical (CVSS 10.0): mcp-pinot is a Python-based Model Context Protocol (MCP) server for interacting with Apache Pinot. In versions 3.0.1…
CVE-2026-46846 — Critical (CVSS 10.0): Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Security Framework).…
CVE-2026-46803 — Critical (CVSS 10.0): Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Security Framework).…
CVE-2026-46800 — Critical (CVSS 10.0): Vulnerability in the Oracle WebCenter Sites product of Oracle Fusion Middleware (component: WebCenter Sites).…

Browse all CWE-306 (Missing Authentication for Critical Function) vulnerabilities →