high
7.5
CWE
788
Advisory Published
Updated

CVE-2021-25661

First published: Wed May 12 2021(Updated: )

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 has an out-of-bounds memory access vulnerability that could be triggered on the client side when sending data from the server, which could result in a Denial-of-Service condition.

Credit: productcert@siemens.com

Affected SoftwareAffected VersionHow to fix
Siemens SIMATIC HMI Comfort Outdoor Panels v15 7’ and 15’ (incl. SIPLUS variants) Update 6<15.1
15.1
Siemens SIMATIC HMI Comfort Panels<15.1
15.1
Siemens SIMATIC HMI KTP Mobile Panels v15 KTP400F, KTP700, KTP700F, KTP900, KTP900F Update 6<15.1
15.1
Siemens SIMATIC WinCC Runtime Advanced<15.1
15.1
Siemens SIMATIC WinCC Runtime Advanced<16
Siemens SIMATIC WinCC Runtime Advanced=16
Siemens SIMATIC WinCC Runtime Advanced=16-update1
Siemens SIMATIC WinCC Runtime Advanced=16-update2
Siemens SIMATIC WinCC Runtime Advanced=16-update3
siemens SIMATIC HMI Comfort Outdoor Panels 7" firmware<16
siemens SIMATIC HMI Comfort Outdoor Panels 7" firmware=16
siemens SIMATIC HMI Comfort Outdoor Panels 7" firmware=16-update1
siemens SIMATIC HMI Comfort Outdoor Panels 7" firmware=16-update2
siemens SIMATIC HMI Comfort Outdoor Panels 7" firmware=16-update3
Siemens SIMATIC HMI Comfort Outdoor Panels 7"
siemens SIMATIC HMI Comfort Outdoor Panels 15" firmware<16
siemens SIMATIC HMI Comfort Outdoor Panels 15" firmware=16
siemens SIMATIC HMI Comfort Outdoor Panels 15" firmware=16
siemens SIMATIC HMI Comfort Outdoor Panels 15" firmware=16-update1
siemens SIMATIC HMI Comfort Outdoor Panels 15" firmware=16-update2
siemens SIMATIC HMI Comfort Outdoor Panels 15" firmware=16-update3
siemens SIMATIC HMI Comfort Outdoor Panels 15"
Siemens SIMATIC HMI Comfort Panels<16
Siemens SIMATIC HMI Comfort Panels=16
Siemens SIMATIC HMI Comfort Panels=16-update1
Siemens SIMATIC HMI Comfort Panels=16-update2
Siemens SIMATIC HMI Comfort Panels=16-update3
Siemens SIMATIC HMI Comfort Panels 4"
siemens SIMATIC HMI Comfort Panels 22" firmware<16
siemens SIMATIC HMI Comfort Panels 22" firmware=16
siemens SIMATIC HMI Comfort Panels 22" firmware=16-update1
siemens SIMATIC HMI Comfort Panels 22" firmware=16-update2
siemens SIMATIC HMI Comfort Panels 22" firmware=16-update3
siemens SIMATIC HMI Comfort Panels 22"
Siemens SIMATIC HMI KTP Mobile Panels<16
Siemens SIMATIC HMI KTP Mobile Panels=16
Siemens SIMATIC HMI KTP Mobile Panels=16-update1
Siemens SIMATIC HMI KTP Mobile Panels=16-update2
Siemens SIMATIC HMI KTP Mobile Panels=16-update3
Siemens SIMATIC HMI KTP Mobile Panels
Siemens SIMATIC HMI KTP Mobile Panels<16
Siemens SIMATIC HMI KTP Mobile Panels=16
Siemens SIMATIC HMI KTP Mobile Panels=16-update1
Siemens SIMATIC HMI KTP Mobile Panels=16-update2
Siemens SIMATIC HMI KTP Mobile Panels=16-update3
Siemens SIMATIC HMI KTP Mobile Panels
Siemens SIMATIC HMI KTP Mobile Panels<16
Siemens SIMATIC HMI KTP Mobile Panels=16
Siemens SIMATIC HMI KTP Mobile Panels=16-update1
Siemens SIMATIC HMI KTP Mobile Panels=16-update2
Siemens SIMATIC HMI KTP Mobile Panels=16-update3
Siemens SIMATIC HMI KTP Mobile Panels
siemens simatic hmi ktp mobile panels firmware<16
siemens simatic hmi ktp mobile panels firmware=16
siemens simatic hmi ktp mobile panels firmware=16-update1
siemens simatic hmi ktp mobile panels firmware=16-update2
siemens simatic hmi ktp mobile panels firmware=16-update3
Siemens SIMATIC HMI KTP900
Siemens SIMATIC HMI KTP Mobile Panels<16
Siemens SIMATIC HMI KTP Mobile Panels=16
Siemens SIMATIC HMI KTP Mobile Panels=16-update1
Siemens SIMATIC HMI KTP Mobile Panels=16-update2
Siemens SIMATIC HMI KTP Mobile Panels=16-update3
Siemens SIMATIC HMI KTP Mobile Panels
siemens SIMATIC HMI Comfort Outdoor Panels 7" firmware<15.1
siemens SIMATIC HMI Comfort Outdoor Panels 7" firmware=15.1
siemens SIMATIC HMI Comfort Outdoor Panels 7" firmware=15.1-update1
siemens SIMATIC HMI Comfort Outdoor Panels 7" firmware=15.1-update2
siemens SIMATIC HMI Comfort Outdoor Panels 7" firmware=15.1-update3
siemens SIMATIC HMI Comfort Outdoor Panels 7" firmware=15.1-update4
siemens SIMATIC HMI Comfort Outdoor Panels 7" firmware=15.1-update5
siemens SIMATIC HMI Comfort Outdoor Panels 15" firmware<15.1
siemens SIMATIC HMI Comfort Outdoor Panels 15" firmware=15.1
siemens SIMATIC HMI Comfort Outdoor Panels 15" firmware=15.1-update1
siemens SIMATIC HMI Comfort Outdoor Panels 15" firmware=15.1-update2
siemens SIMATIC HMI Comfort Outdoor Panels 15" firmware=15.1-update3
siemens SIMATIC HMI Comfort Outdoor Panels 15" firmware=15.1-update4
siemens SIMATIC HMI Comfort Outdoor Panels 15" firmware=15.1-update5
Siemens SIMATIC HMI Comfort Panels<15.1
Siemens SIMATIC HMI Comfort Panels=15.1
Siemens SIMATIC HMI Comfort Panels=15.1-update1
Siemens SIMATIC HMI Comfort Panels=15.1-update2
Siemens SIMATIC HMI Comfort Panels=15.1-update3
Siemens SIMATIC HMI Comfort Panels=15.1-update4
Siemens SIMATIC HMI Comfort Panels=15.1-update5
siemens SIMATIC HMI Comfort Panels 22" firmware<15.1
siemens SIMATIC HMI Comfort Panels 22" firmware=15.1
siemens SIMATIC HMI Comfort Panels 22" firmware=15.1-update1
siemens SIMATIC HMI Comfort Panels 22" firmware=15.1-update2
siemens SIMATIC HMI Comfort Panels 22" firmware=15.1-update3
siemens SIMATIC HMI Comfort Panels 22" firmware=15.1-update4
siemens SIMATIC HMI Comfort Panels 22" firmware=15.1-update5
Siemens SIMATIC HMI KTP Mobile Panels<15.1
Siemens SIMATIC HMI KTP Mobile Panels=15.1
Siemens SIMATIC HMI KTP Mobile Panels=15.1-update1
Siemens SIMATIC HMI KTP Mobile Panels=15.1-update2
Siemens SIMATIC HMI KTP Mobile Panels=15.1-update3
Siemens SIMATIC HMI KTP Mobile Panels=15.1-update4
Siemens SIMATIC HMI KTP Mobile Panels=15.1-update5
Siemens SIMATIC HMI KTP Mobile Panels<15.1
Siemens SIMATIC HMI KTP Mobile Panels=15.1
Siemens SIMATIC HMI KTP Mobile Panels=15.1-update1
Siemens SIMATIC HMI KTP Mobile Panels=15.1-update2
Siemens SIMATIC HMI KTP Mobile Panels=15.1-update3
Siemens SIMATIC HMI KTP Mobile Panels=15.1-update4
Siemens SIMATIC HMI KTP Mobile Panels=15.1-update5
Siemens SIMATIC HMI KTP Mobile Panels<15.1
Siemens SIMATIC HMI KTP Mobile Panels=15.1
Siemens SIMATIC HMI KTP Mobile Panels=15.1-update1
Siemens SIMATIC HMI KTP Mobile Panels=15.1-update2
Siemens SIMATIC HMI KTP Mobile Panels=15.1-update3
Siemens SIMATIC HMI KTP Mobile Panels=15.1-update4
Siemens SIMATIC HMI KTP Mobile Panels=15.1-update5
siemens simatic hmi ktp mobile panels firmware<15.1
siemens simatic hmi ktp mobile panels firmware=15.1
siemens simatic hmi ktp mobile panels firmware=15.1-update1
siemens simatic hmi ktp mobile panels firmware=15.1-update2
siemens simatic hmi ktp mobile panels firmware=15.1-update3
siemens simatic hmi ktp mobile panels firmware=15.1-update4
siemens simatic hmi ktp mobile panels firmware=15.1-update5
Siemens SIMATIC HMI KTP Mobile Panels<15.1
Siemens SIMATIC HMI KTP Mobile Panels=15.1
Siemens SIMATIC HMI KTP Mobile Panels=15.1-update1
Siemens SIMATIC HMI KTP Mobile Panels=15.1-update2
Siemens SIMATIC HMI KTP Mobile Panels=15.1-update3
Siemens SIMATIC HMI KTP Mobile Panels=15.1-update4
Siemens SIMATIC HMI KTP Mobile Panels=15.1-update5
Siemens SIMATIC WinCC Runtime Advanced<15.1
Siemens SIMATIC WinCC Runtime Advanced=15.1
Siemens SIMATIC WinCC Runtime Advanced=15.1-update1
Siemens SIMATIC WinCC Runtime Advanced=15.1-update2
Siemens SIMATIC WinCC Runtime Advanced=15.1-update3
Siemens SIMATIC WinCC Runtime Advanced=15.1-update4
Siemens SIMATIC WinCC Runtime Advanced=15.1-update5

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2021-25661?

    CVE-2021-25661 has a CVSS score that indicates a high severity rating, potentially allowing unauthorized access to sensitive information.

  • How do I fix CVE-2021-25661?

    To fix CVE-2021-25661, ensure that you update the affected Siemens products to the latest version, specifically versions 15.1 or newer.

  • What Siemens products are affected by CVE-2021-25661?

    Affected Siemens products include SIMATIC HMI Comfort Outdoor Panels, Comfort Panels, and KTP Mobile Panels running versions prior to 15.1 Update 6.

  • Can CVE-2021-25661 be exploited remotely?

    Yes, CVE-2021-25661 can be potentially exploited remotely, allowing attackers to gain unauthorized access under certain conditions.

  • Is there a workaround for CVE-2021-25661?

    There are no known workarounds for CVE-2021-25661, and the only solution is to apply the necessary updates to the affected systems.

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