SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-18878

In firmware version MS_2.6.9900 of Columbia Weather MicroServer, the BACnet daemon does not properly validate input, which could allow a remote attacker to send specially crafted packets causing the device to become unavailable.

HIGH 7.5EPSS 2.89%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (2.89%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

In firmware version MS_2.6.9900 of Columbia Weather MicroServer, the BACnet daemon does not properly validate input, which could allow a remote attacker to send specially crafted packets causing the device to become unavailable.

CVSS 3.0
7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
2.89% probability · 87th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-20
Affected
columbiaweather/weather microserver firmware
Source
cve@mitre.org
EPSS trend
0%3%5%27 October 2026: 2.89%27 October 202627 October 2026

EPSS 2.9% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

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