CVEvulnerability

CVE-2021-31340

7.5 HIGH Published 2021-06-08 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-06-08
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
Weaknesses
CWE-400

Description

A vulnerability has been identified in SIMATIC RF166C (All versions > V1.1 and < V1.3.2), SIMATIC RF185C (All versions > V1.1 and < V1.3.2), SIMATIC RF186C (All versions > V1.1 and < V1.3.2), SIMATIC RF186CI (All versions > V1.1 and < V1.3.2), SIMATIC RF188C (All versions > V1.1 and < V1.3.2), SIMATIC RF188CI (All versions > V1.1 and < V1.3.2), SIMATIC RF360R (All versions < V2.0), SIMATIC Reader RF610R CMIIT (All versions > V3.0 < V4.0), SIMATIC Reader RF610R ETSI (All versions > V3.0 < V4.0), SIMATIC Reader RF610R FCC (All versions > V3.0 < V4.0), SIMATIC Reader RF615R CMIIT (All versions > V3.0 < V4.0), SIMATIC Reader RF615R ETSI (All versions > V3.0 < V4.0), SIMATIC Reader RF615R FCC (All versions > V3.0 < V4.0), SIMATIC Reader RF650R ARIB (All versions > V3.0 < V4.0), SIMATIC Reader RF650R CMIIT (All versions > V3.0 < V4.0), SIMATIC Reader RF650R ETSI (All versions > V3.0 < V4.0), SIMATIC Reader RF650R FCC (All versions > V3.0 < V4.0), SIMATIC Reader RF680R ARIB (All versions > V3.0 < V4.0), SIMATIC Reader RF680R CMIIT (All versions > V3.0 < V4.0), SIMATIC Reader RF680R ETSI (All versions > V3.0 < V4.0), SIMATIC Reader RF680R FCC (All versions > V3.0 < V4.0), SIMATIC Reader RF685R ARIB (All versions > V3.0 < V4.0), SIMATIC Reader RF685R CMIIT (All versions > V3.0 < V4.0), SIMATIC Reader RF685R ETSI (All versions > V3.0 < V4.0), SIMATIC Reader RF685R FCC (All versions > V3.0 < V4.0). Affected devices do not properly handle large numbers of incoming connections. An attacker may leverage this to cause a Denial-of-Service situation.

Affected configurations

• siemens simatic rf166c firmware (> 1.1 < 1.3.2) • siemens simatic rf185c firmware (> 1.1 < 1.3.2) • siemens simatic rf186c firmware (> 1.1 < 1.3.2) • siemens simatic rf186ci firmware (> 1.1 < 1.3.2) • siemens simatic rf188c firmware (> 1.1 < 1.3.2) • siemens simatic rf188ci firmware (> 1.1 < 1.3.2) • siemens simatic rf360r firmware (< 2.0) • siemens simatic reader rf610r cmiit firmware (>= 3.0 < 4.0) • siemens simatic reader rf610r etsi firmware (>= 3.0 < 4.0) • siemens simatic reader rf610r fcc firmware (>= 3.0 < 4.0) • siemens simatic reader rf615r cmiit firmware (>= 3.0 < 4.0) • siemens simatic reader rf615r etsi firmware (>= 3.0 < 4.0) • siemens simatic reader rf615r fcc firmware (>= 3.0 < 4.0) • siemens simatic reader rf650r cmiit firmware (>= 3.0 < 4.0) • siemens simatic reader rf650r etsi firmware (>= 3.0 < 4.0) • siemens simatic reader rf650r fcc firmware (>= 3.0 < 4.0) • siemens simatic reader rf650r arib firmware (>= 3.0 < 4.0) • siemens simatic reader rf680r cmiit firmware (>= 3.0 < 4.0) • siemens simatic reader rf680r etsi firmware (>= 3.0 < 4.0) • siemens simatic reader rf680r fcc firmware (>= 3.0 < 4.0) • siemens simatic reader rf680r arib firmware (>= 3.0 < 4.0) • siemens simatic reader rf685r cmiit firmware (>= 3.0 < 4.0) • siemens simatic reader rf685r etsi firmware (>= 3.0 < 4.0) • siemens simatic reader rf685r fcc firmware (>= 3.0 < 4.0) • siemens simatic reader rf685r arib firmware (>= 3.0 < 4.0)

Related

Weakness · CWE (1)

  • CWE-400 Uncontrolled Resource Consumption weakness

References