SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-14829

This vulnerability may allow a remote threat actor to intentionally send a malformed CIP packet to Port 44818, causing the software application to stop responding and crash.

CRITICAL 9.8EPSS 16.1%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 16.1%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.

Description

Rockwell Automation RSLinx Classic Versions 4.00.01 and prior. This vulnerability may allow a remote threat actor to intentionally send a malformed CIP packet to Port 44818, causing the software application to stop responding and crash. This vulnerability also has the potential to exploit a buffer overflow condition, which may allow the threat actor to remotely execute arbitrary code.

CVSS 3.0
9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
16.09% probability · 97th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-121, CWE-119
Affected
rockwellautomation/rslinx
Source
ics-cert@hq.dhs.gov
EPSS trend
0%10%20%21 September 2026: 14.64%22 September 2026: 16.09%27 October 2026: 16.09%21 September 202627 October 2026

EPSS moved from 14.6% on 21 September 2026 to 16.1% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.

References

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