Read the docs
TI-2018-10027 Aliases CVE-2018-13816GHSA-vx39-fw57-q8mc

Improper access control in Siemens TIM 1531 IRC

Priority MEDIUM 48CWE-284Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-284.

Summary

A vulnerability has been identified in TIM 1531 IRC (All version < V2.0). The devices was missing proper authentication on port 102/tcp, although configured. Successful exploitation requires an attacker to be able to send packets to port 102/tcp of the affected device. No user interaction and no user privileges are required to exploit the vulnerability. At the time of advisory publication no public exploitation of this vulnerability was known.

Why it matters now

EPSS 0.02796 86th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
SiemensTIM 1531 IRCTIM 1531 IRC : All version < V2.0—No fix listedCNA
  • TIM 1531 IRC VendorSiemens Affected TIM 1531 IRC : All version < V2.0 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:siemens:tim_1531_irc_firmware:*:*:*:*:*:*:*:*before 2.0VulnerableSiemens
cpe:2.3:h:siemens:tim_1531_irc:-:*:*:*:*:*:*:*not specified by NVDRunning onSiemens
  • cpe:2.3:o:siemens:tim_1531_irc_firmware:*:*:*:*:*:*:*:* Versions before 2.0 Vulnerable ·Siemens
  • cpe:2.3:h:siemens:tim_1531_irc:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-13816
  2. 2026-10-03 Alias added: GHSA-vx39-fw57-q8mc

References

  • TI-2021-02413 NULL pointer deref in signature_algorithms processing CVSS 3.1MEDIUM 5.9
  • TI-2018-03418 Improper authentication in Siemens TIM 1531 IRC CVSS 3.1CRITICAL 9.8
  • TI-2020-16898 Uncontrolled resource consumption in lldp/openvswitch CVSS 3.1HIGH 7.5
  • TI-2021-15266 A vulnerability has been identified in SIMATIC Drive Controller family (All versions <… CVSS 3.1HIGH 7.5
  • TI-2021-15247 A vulnerability has been identified in SIMATIC Drive Controller family (All versions >=… CVSS 3.1HIGH 7.5
  • TI-2021-15267 Memory leak in Siemens SIMATIC Drive Controller family CVSS 3.1HIGH 7.5
See all 15 →

Sources