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TI-2024-29269 Aliases CVE-2024-43647GHSA-6x28-mpjc-6r6h

Uncontrolled resource consumption in Siemens SIMATIC S7-200 SMART CPU CR40

Priority MEDIUM 44CWE-400Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-400.

Summary

A vulnerability has been identified in SIMATIC S7-200 SMART CPU CR40 (6ES7288-1CR40-0AA0) (All versions), SIMATIC S7-200 SMART CPU CR60 (6ES7288-1CR60-0AA0) (All versions), SIMATIC S7-200 SMART CPU SR20 (6ES7288-1SR20-0AA0) (All versions), SIMATIC S7-200 SMART CPU SR20 (6ES7288-1SR20-0AA1) (All versions), SIMATIC S7-200 SMART CPU SR30 (6ES7288-1SR30-0AA0) (All versions), SIMATIC S7-200 SMART CPU SR30 (6ES7288-1SR30-0AA1) (All versions), SIMATIC S7-200 SMART CPU SR40 (6ES7288-1SR40-0AA0) (All versions), SIMATIC S7-200 SMART CPU SR40 (6ES7288-1SR40-0AA1) (All versions), SIMATIC S7-200 SMART CPU SR60 (6ES7288-1SR60-0AA0) (All versions), SIMATIC S7-200 SMART CPU SR60 (6ES7288-1SR60-0AA1) (All versions), SIMATIC S7-200 SMART CPU ST20 (6ES7288-1ST20-0AA0) (All versions), SIMATIC S7-200 SMART CPU ST20 (6ES7288-1ST20-0AA1) (All versions), SIMATIC S7-200 SMART CPU ST30 (6ES7288-1ST30-0AA0) (All versions), SIMATIC S7-200 SMART CPU ST30 (6ES7288-1ST30-0AA1) (All versions), SIMATIC S7-200 SMART CPU ST40 (6ES7288-1ST40-0AA0) (All versions), SIMATIC S7-200 SMART CPU ST40 (6ES7288-1ST40-0AA1) (All versions), SIMATIC S7-200 SMART CPU ST60 (6ES7288-1ST60-0AA0) (All versions), SIMATIC S7-200 SMART CPU ST60 (6ES7288-1ST60-0AA1) (All versions). Affected devices do not properly handle TCP packets with an incorrect structure. This could allow an unauthenticated remote attacker to cause a denial of service condition. To restore normal operations, the network cable of the device needs to be unplugged and re-plugged.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0056 46th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
SiemensSIMATIC S7-200 SMART CPU CR40all versions—No fix listedCNA
SiemensSIMATIC S7-200 SMART CPU CR60all versions—No fix listedCNA
SiemensSIMATIC S7-200 SMART CPU SR20all versions—No fix listedCNA
SiemensSIMATIC S7-200 SMART CPU SR20all versions—No fix listedCNA
SiemensSIMATIC S7-200 SMART CPU SR30all versions—No fix listedCNA
SiemensSIMATIC S7-200 SMART CPU SR30all versions—No fix listedCNA
SiemensSIMATIC S7-200 SMART CPU SR40all versions—No fix listedCNA
SiemensSIMATIC S7-200 SMART CPU SR40all versions—No fix listedCNA
SiemensSIMATIC S7-200 SMART CPU SR60all versions—No fix listedCNA
SiemensSIMATIC S7-200 SMART CPU SR60all versions—No fix listedCNA
SiemensSIMATIC S7-200 SMART CPU ST20all versions—No fix listedCNA
SiemensSIMATIC S7-200 SMART CPU ST20all versions—No fix listedCNA
SiemensSIMATIC S7-200 SMART CPU ST30all versions—No fix listedCNA
SiemensSIMATIC S7-200 SMART CPU ST30all versions—No fix listedCNA
SiemensSIMATIC S7-200 SMART CPU ST40all versions—No fix listedCNA
SiemensSIMATIC S7-200 SMART CPU ST40all versions—No fix listedCNA
SiemensSIMATIC S7-200 SMART CPU ST60all versions—No fix listedCNA
SiemensSIMATIC S7-200 SMART CPU ST60all versions—No fix listedCNA
  • SIMATIC S7-200 SMART CPU CR40 VendorSiemens Affected all versions Fixed in — No fix listed CNA
  • SIMATIC S7-200 SMART CPU CR60 VendorSiemens Affected all versions Fixed in — No fix listed CNA
  • SIMATIC S7-200 SMART CPU SR20 VendorSiemens Affected all versions Fixed in — No fix listed CNA
  • SIMATIC S7-200 SMART CPU SR20 VendorSiemens Affected all versions Fixed in — No fix listed CNA
  • SIMATIC S7-200 SMART CPU SR30 VendorSiemens Affected all versions Fixed in — No fix listed CNA
  • SIMATIC S7-200 SMART CPU SR30 VendorSiemens Affected all versions Fixed in — No fix listed CNA
  • SIMATIC S7-200 SMART CPU SR40 VendorSiemens Affected all versions Fixed in — No fix listed CNA
  • SIMATIC S7-200 SMART CPU SR40 VendorSiemens Affected all versions Fixed in — No fix listed CNA
  • SIMATIC S7-200 SMART CPU SR60 VendorSiemens Affected all versions Fixed in — No fix listed CNA
  • SIMATIC S7-200 SMART CPU SR60 VendorSiemens Affected all versions Fixed in — No fix listed CNA
  • SIMATIC S7-200 SMART CPU ST20 VendorSiemens Affected all versions Fixed in — No fix listed CNA
  • SIMATIC S7-200 SMART CPU ST20 VendorSiemens Affected all versions Fixed in — No fix listed CNA
  • SIMATIC S7-200 SMART CPU ST30 VendorSiemens Affected all versions Fixed in — No fix listed CNA
  • SIMATIC S7-200 SMART CPU ST30 VendorSiemens Affected all versions Fixed in — No fix listed CNA
  • SIMATIC S7-200 SMART CPU ST40 VendorSiemens Affected all versions Fixed in — No fix listed CNA
  • SIMATIC S7-200 SMART CPU ST40 VendorSiemens Affected all versions Fixed in — No fix listed CNA
  • SIMATIC S7-200 SMART CPU ST60 VendorSiemens Affected all versions Fixed in — No fix listed CNA
  • SIMATIC S7-200 SMART CPU ST60 VendorSiemens Affected all versions Fixed in — No fix listed CNA

CPE names CISA-ADP · 14

CPEVersionsRoleVendor
cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_cr20s:-:*:*:*:*:*:*:*not specified by CISA-ADP—Siemens
cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_cr30s:-:*:*:*:*:*:*:*not specified by CISA-ADP—Siemens
cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_cr40:-:*:*:*:*:*:*:*not specified by CISA-ADP—Siemens
cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_cr40s:-:*:*:*:*:*:*:*not specified by CISA-ADP—Siemens
cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_cr60:-:*:*:*:*:*:*:*not specified by CISA-ADP—Siemens
cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_cr60s:-:*:*:*:*:*:*:*not specified by CISA-ADP—Siemens
cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_sr20:-:*:*:*:*:*:*:*not specified by CISA-ADP—Siemens
cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_sr30:-:*:*:*:*:*:*:*not specified by CISA-ADP—Siemens
cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_sr40:-:*:*:*:*:*:*:*not specified by CISA-ADP—Siemens
cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_sr60:-:*:*:*:*:*:*:*not specified by CISA-ADP—Siemens
  • cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_cr20s:-:*:*:*:*:*:*:* Versions not specified by CISA-ADP — ·Siemens
  • cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_cr30s:-:*:*:*:*:*:*:* Versions not specified by CISA-ADP — ·Siemens
  • cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_cr40:-:*:*:*:*:*:*:* Versions not specified by CISA-ADP — ·Siemens
  • cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_cr40s:-:*:*:*:*:*:*:* Versions not specified by CISA-ADP — ·Siemens
  • cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_cr60:-:*:*:*:*:*:*:* Versions not specified by CISA-ADP — ·Siemens
  • cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_cr60s:-:*:*:*:*:*:*:* Versions not specified by CISA-ADP — ·Siemens
  • cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_sr20:-:*:*:*:*:*:*:* Versions not specified by CISA-ADP — ·Siemens
  • cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_sr30:-:*:*:*:*:*:*:* Versions not specified by CISA-ADP — ·Siemens
  • cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_sr40:-:*:*:*:*:*:*:* Versions not specified by CISA-ADP — ·Siemens
  • cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_sr60:-:*:*:*:*:*:*:* Versions not specified by CISA-ADP — ·Siemens
Show 4 more CPE
CPEVersionsRoleVendor
cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_st20:-:*:*:*:*:*:*:*not specified by CISA-ADP—Siemens
cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_st30:-:*:*:*:*:*:*:*not specified by CISA-ADP—Siemens
cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_st40:-:*:*:*:*:*:*:*not specified by CISA-ADP—Siemens
cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_st60:-:*:*:*:*:*:*:*not specified by CISA-ADP—Siemens
  • cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_st20:-:*:*:*:*:*:*:* Versions not specified by CISA-ADP — ·Siemens
  • cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_st30:-:*:*:*:*:*:*:* Versions not specified by CISA-ADP — ·Siemens
  • cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_st40:-:*:*:*:*:*:*:* Versions not specified by CISA-ADP — ·Siemens
  • cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_st60:-:*:*:*:*:*:*:* Versions not specified by CISA-ADP — ·Siemens

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-43647
  2. 2026-10-03 Alias added: GHSA-6x28-mpjc-6r6h

References

Other 1

  • TI-2026-20057 Authentication bypass in Fortinet FortiWeb KEVCVSS 3.1CRITICAL 9.4
  • TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-18911 Heap-based buffer overflow in Fortinet FortiSwitchManager KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-09686 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.8
  • TI-2022-07142 Code injection in Spring Framework KEVCVSS 3.1CRITICAL 9.8
  • TI-2021-19919 Apache Log4j2 JNDI features do not protect against attacker controlled LDAP and other JNDI related endpoints KEVCVSS 3.1CRITICAL 10.0
See all 2487 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences