SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-22784

A CWE-306: Missing Authentication for Critical Function vulnerability exists in C-Bus Toolkit v1.15.8 and prior that could allow an attacker to use a crafted webpage to obtain remote access to the system.

MEDIUM 5.7EPSS 12.1%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 12.1%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.

Description

A CWE-306: Missing Authentication for Critical Function vulnerability exists in C-Bus Toolkit v1.15.8 and prior that could allow an attacker to use a crafted webpage to obtain remote access to the system.

CVSS 3.1
5.7 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N
EPSS
12.08% probability · 96th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-306
Affected
schneider-electric/c-bus toolkit
Source
cybersecurity@se.com
EPSS trend
0%8%15%3 November 2026: 12.08%3 November 20263 November 2026

EPSS 12.1% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.