CVE-2021-25662
A vulnerability has been identified in SIMATIC HMI Comfort Outdoor Panels V15 7\" & 15\" (incl.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.64%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A vulnerability has been identified in SIMATIC HMI Comfort Outdoor Panels V15 7\" & 15\" (incl. SIPLUS variants) (All versions < V15.1 Update 6), SIMATIC HMI Comfort Outdoor Panels V16 7\" & 15\" (incl. SIPLUS variants) (All versions < V16 Update 4), SIMATIC HMI Comfort Panels V15 4\" - 22\" (incl. SIPLUS variants) (All versions < V15.1 Update 6), SIMATIC HMI Comfort Panels V16 4\" - 22\" (incl. SIPLUS variants) (All versions < V16 Update 4), SIMATIC HMI KTP Mobile Panels V15 KTP400F, KTP700, KTP700F, KTP900 and KTP900F (All versions < V15.1 Update 6), SIMATIC HMI KTP Mobile Panels V16 KTP400F, KTP700, KTP700F, KTP900 and KTP900F (All versions < V16 Update 4), SIMATIC WinCC Runtime Advanced V15 (All versions < V15.1 Update 6), SIMATIC WinCC Runtime Advanced V16 (All versions < V16 Update 4). SmartVNC client fails to handle an exception properly if the program execution process is modified after sending a packet from the server, which could result in a Denial-of-Service condition.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.64% probability · 75th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-755
- Affected
- siemens/simatic wincc runtime advanced · siemens/simatic hmi comfort outdoor panels 7\" firmware · siemens/simatic hmi comfort outdoor panels 15\" firmware · siemens/simatic hmi comfort panels 4\" firmware · siemens/simatic hmi comfort panels 22\" firmware · siemens/simatic hmi ktp mobile panels ktp400f firmware · siemens/simatic hmi ktp mobile panels ktp700 firmware · siemens/simatic hmi ktp mobile panels ktp700f firmware · siemens/simatic hmi ktp mobile panels ktp900 firmware · siemens/simatic hmi ktp mobile panels ktp900f firmware
- Source
- productcert@siemens.com
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-538778.pdfVendor Advisory
- https://us-cert.cisa.gov/ics/advisories/icsa-21-131-12Third Party Advisory, US Government Resource
- https://cert-portal.siemens.com/productcert/pdf/ssa-538778.pdfVendor Advisory
- https://us-cert.cisa.gov/ics/advisories/icsa-21-131-12Third Party Advisory, US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.