SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-4841

A vulnerability has been identified in TIM 1531 IRC (All versions < V1.1).

CRITICAL 9.8EPSS 4.73%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (4.73%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

A vulnerability has been identified in TIM 1531 IRC (All versions < V1.1). A remote attacker with network access to port 80/tcp or port 443/tcp could perform administrative operations on the device without prior authentication. Successful exploitation could allow to cause a denial-of-service, or read and manipulate data as well as configuration settings of the affected device. At the stage of publishing this security advisory no public exploitation is known. Siemens provides mitigations to resolve it.

CVSS 3.1
9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
4.73% probability · 92th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-303, CWE-287
Affected
siemens/tim 1531 irc firmware
Source
productcert@siemens.com
EPSS trend
0%3%5%27 October 2026: 4.73%27 October 202627 October 2026

EPSS 4.7% 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.

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