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VulnerabilityPublished

CVE-2025-56463: Information Exposure

Source CVE Database V5

0

Not known to be exploited · CVSS 6.8 Medium.

Data as of 26 Oct 2026, 09:15 UTC

CVSS 3.1 base score
6.8Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 9% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 26 Sep 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

AI-suggested

Organizations and users should immediately verify if they are using Mercusys MW305R routers with firmware version 3.30 or below. In the interim, it is advisable to replace affected devices with models from vendors with a strong security track record or to isolate these routers from critical network segments. Network administrators should implement network segmentation to limit exposure and monitor network traffic for unusual TLS handshake anomalies or MITM attack indicators. Employing additional layers of encryption at the application level (e.g., end-to-end encryption) can reduce the impact of TLS key compromise. Changing default credentials and disabling remote management features can reduce the attack surface. Finally, organizations should conduct regular security audits and vulnerability assessments to detect any signs of compromise related to this vulnerability.

Description

Mercusys MW305R 3.30 and below is has a Transport Layer Security (TLS) certificate private key disclosure.

References

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