SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-12086

Buffer overflow in OPC UA applications allows remote attackers to trigger a stack overflow with carefully structured requests.

HIGH 7.5EPSS 11.8%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 11.8%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.

Description

Buffer overflow in OPC UA applications allows remote attackers to trigger a stack overflow with carefully structured requests.

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
11.81% probability · 96th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-787
Affected
opcfoundation/unified architecture-.net-legacy · opcfoundation/unified architecture-java · opcfoundation/unified architecture .net-standard · opcfoundation/unified architecture ansic · debian/debian linux
Source
cve@mitre.org
EPSS trend
0%8%15%21 September 2026: 8.98%22 September 2026: 11.59%27 October 2026: 11.81%21 September 202627 October 2026

EPSS moved from 9.0% on 21 September 2026 to 11.8% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.

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