How severe is CVE-2025-63363?

CVE-2025-63363 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 none, and availability high.

Is CVE-2025-63363 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-63363?

CVE-2025-63363 affects Waveshare Rs232/485 To Wifi Eth (b) Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-63363?

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.

Does CVE-2025-63363 have an EU (EUVD) identifier?

Yes. CVE-2025-63363 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-201245.

When was CVE-2025-63363 published?

CVE-2025-63363 was published on 2025-12-04 and last updated on 2026-06-17.

CVE-2025-63363

CVE-2025-63363 is a high-severity vulnerability in Waveshare Rs232/485 To Wifi Eth (b) 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-284.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (21st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-201245
Weakness: CWE-284
Affected product: Waveshare Rs232/485 To Wifi Eth (b) Firmware
Published: 2025-12-04
Last modified: 2026-06-17

Description

A lack of Management Frame Protection in Waveshare RS232/485 TO WIFI ETH (B) Serial to Ethernet/Wi-Fi Gateway Firmware V3.1.1.0: HW 4.3.2.1: Webpage V7.04T.07.002880.0301 allows attackers to execute de-authentication attacks, allowing crafted deauthentication and disassociation frames to be broadcast without authentication or encryption.

Frequently asked questions

What is CVE-2025-63363?: A lack of Management Frame Protection in Waveshare RS232/485 TO WIFI ETH (B) Serial to Ethernet/Wi-Fi Gateway Firmware V3.1.1.0: HW 4.3.2.1: Webpage V7.04T.07.002880.0301 allows attackers to execute de-authentication attacks, allowing crafted deauthentication and disassociation frames to be broadcast without authentication or encryption.
How severe is CVE-2025-63363?: CVE-2025-63363 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 none, and availability high.
Is CVE-2025-63363 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-63363?: CVE-2025-63363 affects Waveshare Rs232/485 To Wifi Eth (b) Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-63363?: 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.
Does CVE-2025-63363 have an EU (EUVD) identifier?: Yes. CVE-2025-63363 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-201245.
When was CVE-2025-63363 published?: CVE-2025-63363 was published on 2025-12-04 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:waveshare:rs232\/485_to_wifi_eth_\(b\)_firmware:3.1.1.0:*:*:*:*:*:*:*

More vulnerabilities in Waveshare Rs232/485 To Wifi Eth (b) Firmware

CVE-2025-63362 — Critical (CVSS 9.8): Waveshare RS232/485 TO WIFI ETH (B) Serial to Ethernet/Wi-Fi Gateway Firmware V3.1.1.0: HW 4.3.2.1: Webpage…
CVE-2025-63364 — High (CVSS 7.5): Waveshare RS232/485 TO WIFI ETH (B) Serial to Ethernet/Wi-Fi Gateway Firmware V3.1.1.0: HW 4.3.2.1: Webpage…
CVE-2025-63361 — Medium (CVSS 5.7): Waveshare RS232/485 TO WIFI ETH (B) Serial to Ethernet/Wi-Fi Gateway Firmware V3.1.1.0: HW 4.3.2.1: Webpage…

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