Incorrect numeric conversion in Siemens SIPLUS TIM 1531 IRC
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Passive
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
A vulnerability has been identified in SIPLUS TIM 1531 IRC (6AG1543-1MX00-7XE0) (All versions < V2.4.8), TIM 1531 IRC (6GK7543-1MX00-0XE0) (All versions < V2.4.8). Casting an internal value could lead to floating point exception under certain circumstances. This could allow an attacker to cause a denial of service condition on affected devices.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Siemens | SIPLUS TIM 1531 IRC | before V2.4.8 | V2.4.8 | Patch available | CNA |
| Siemens | TIM 1531 IRC | before V2.4.8 | V2.4.8 | Patch available | CNA |
Remediation
- Fix · CNA SIPLUS TIM 1531 IRC (Siemens) Fixed in V2.4.8
- Fix · CNA TIM 1531 IRC (Siemens) Fixed in V2.4.8
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Siemens SIPLUS TIM 1531 IRC, TIM 1531 IRC V2.4.8
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2023-27693 Infinite loop in Siemens SIMATIC CP 1542SP-1Priority LOW 31
Timeline
- 2026-10-02 Threatist record created from CVE-2022-40225
- 2026-10-03 Alias added: GHSA-7xr5-w5mj-r2jm
- 2026-11-06 EPSS moved to the 50th–90th percentile
References
More Siemens Siplus Tim 1531 Irc Firmware vulnerabilities
- TI-2022-21502 Resource allocation without limits in Siemens SIMATIC CP 1242-7 V2 CVSS 3.1HIGH 7.5
- TI-2022-21471 Use after free in Siemens SIMATIC CP 1242-7 V2 CVSS 3.1HIGH 7.5
- TI-2021-17434 Improper input validation in Siemens SIMATIC Drive Controller CPU 1504D TF CVSS 3.1HIGH 7.5
- TI-2022-21501 A vulnerability has been identified in SIMATIC CP 1242-7 V2 (6GK7242-7KX31-0XE0) (All… CVSS 3.1HIGH 7.5
- TI-2021-20216 Improper input validation in Siemens SIMATIC Drive Controller CPU 1504D TF CVSS 3.1HIGH 7.5
- TI-2021-20215 Improper input validation in Siemens SIMATIC Drive Controller CPU 1504D TF CVSS 3.1HIGH 7.5
Sources
- CVE-2022-40225 · CVE Program
- CVE-2022-40225 · NVD
- FIRST EPSS
- GHSA-7xr5-w5mj-r2jm · GitHub Advisory Database · CC BY 4.0
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