CVE-2018-4841
highpriority · track · 41EPSS 0.047 · 92 %ileEURUUSEPSS · scored 2026-10-27
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.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- FixedTIM 1531 IRC (incl. SIPLUS NET variants)cisa_csaf_ot
Update to V1.1 https://support.industry.siemens.com/cs/ww/en/view/109755374
- MitigationTIM 1531 IRC (incl. SIPLUS NET variants)cisa_csaf_ot
Users can limit access to port 80/tcp and port 443/tcp in their network infrastructure (e.g. cell-protection firewall or corporate firewall) to reduce the risk.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 9–10
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (5)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- ICSA-18-088-02Siemens TIM 1531 IRC2018-03-27icsa · cisa_csaf_otUS
As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens' operational guidelines for Industrial Security (Download: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals.
also known as (6)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (6)
External citations — patches, advisories, analysis.
- https://cert-portal.siemens.com/productcert/pdf/ssa-110922.pdfcnnvd
- https://www.securityfocus.com/bid/103576cnnvd
- http://www.securityfocus.com/bid/103576enisa_euvd
- https://cert-portal.siemens.com/productcert/pdf/ssa-110922.pdfenisa_euvd
- http://www.securityfocus.com/bid/103576Broken LinkThird Party AdvisoryVDB Entrynvd
- https://cert-portal.siemens.com/productcert/pdf/ssa-110922.pdfVendor Advisorynvd
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