CVE-2022-31766
Published: 11 October 2022
Summary
CVE-2022-31766 is a high-severity Improper Input Validation (CWE-20) vulnerability in Siemens Scalance Wam766-1 Firmware. Its CVSS base score is 8.6 (High).
Operationally, ranked in the top 22.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-53161
Vulnerability details
A vulnerability has been identified in RUGGEDCOM RM1224 LTE(4G) EU (6GK6108-4AM00-2BA2) (All versions < V7.1.2), RUGGEDCOM RM1224 LTE(4G) NAM (6GK6108-4AM00-2DA2) (All versions < V7.1.2), SCALANCE M804PB (6GK5804-0AP00-2AA2) (All versions < V7.1.2), SCALANCE M812-1 ADSL-Router (6GK5812-1AA00-2AA2) (All versions < V7.1.2), SCALANCE…
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M812-1 ADSL-Router (6GK5812-1BA00-2AA2) (All versions < V7.1.2), SCALANCE M816-1 ADSL-Router (6GK5816-1AA00-2AA2) (All versions < V7.1.2), SCALANCE M816-1 ADSL-Router (6GK5816-1BA00-2AA2) (All versions < V7.1.2), SCALANCE M826-2 SHDSL-Router (6GK5826-2AB00-2AB2) (All versions < V7.1.2), SCALANCE M874-2 (6GK5874-2AA00-2AA2) (All versions < V7.1.2), SCALANCE M874-3 (6GK5874-3AA00-2AA2) (All versions < V7.1.2), SCALANCE M876-3 (6GK5876-3AA02-2BA2) (All versions < V7.1.2), SCALANCE M876-3 (ROK) (6GK5876-3AA02-2EA2) (All versions < V7.1.2), SCALANCE M876-4 (6GK5876-4AA10-2BA2) (All versions < V7.1.2), SCALANCE M876-4 (EU) (6GK5876-4AA00-2BA2) (All versions < V7.1.2), SCALANCE M876-4 (NAM) (6GK5876-4AA00-2DA2) (All versions < V7.1.2), SCALANCE MUM853-1 (EU) (6GK5853-2EA00-2DA1) (All versions < V7.1.2), SCALANCE MUM856-1 (EU) (6GK5856-2EA00-3DA1) (All versions < V7.1.2), SCALANCE MUM856-1 (RoW) (6GK5856-2EA00-3AA1) (All versions < V7.1.2), SCALANCE S615 EEC LAN-Router (6GK5615-0AA01-2AA2) (All versions < V7.1.2), SCALANCE S615 LAN-Router (6GK5615-0AA00-2AA2) (All versions < V7.1.2), SCALANCE WAM763-1 (6GK5763-1AL00-7DA0) (All versions >= V1.1.0 < V3.0.0), SCALANCE WAM766-1 (6GK5766-1GE00-7DA0) (All versions >= V1.1.0 < V3.0.0), SCALANCE WAM766-1 (US) (6GK5766-1GE00-7DB0) (All versions >= V1.1.0 < V3.0.0), SCALANCE WAM766-1 EEC (6GK5766-1GE00-7TA0) (All versions >= V1.1.0 < V3.0.0), SCALANCE WAM766-1 EEC (US) (6GK5766-1GE00-7TB0) (All versions >= V1.1.0 < V3.0.0), SCALANCE WUM763-1 (6GK5763-1AL00-3AA0) (All versions >= V1.1.0 < V3.0.0), SCALANCE WUM763-1 (6GK5763-1AL00-3DA0) (All versions >= V1.1.0 < V3.0.0), SCALANCE WUM766-1 (6GK5766-1GE00-3DA0) (All versions >= V1.1.0 < V3.0.0), SCALANCE WUM766-1 (USA) (6GK5766-1GE00-3DB0) (All versions >= V1.1.0 < V3.0.0). Affected devices with TCP Event service enabled do not properly handle malformed packets. This could allow an unauthenticated remote attacker to cause a denial of service condition and reboot the device thus possibly affecting other network resources.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Security testing and developer training directly verify and enforce proper input validation, reducing exploitability of injection and malformed-data weaknesses.
Security testing and evaluation at multiple SDLC stages directly detects missing or flawed input validation, with the required remediation process ensuring fixes are applied.
Directly implements checks on information inputs to reject invalid data before processing.
Spam protection mechanisms perform filtering and detection on inbound/outbound messages, directly compensating for missing or weak input validation of unsolicited content.