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By the Year

In 2022 there have been 0 vulnerabilities in Siemens Simatic Logon . Last year Simatic Logon had 1 security vulnerability published. Right now, Simatic Logon is on track to have less security vulnerabilities in 2022 than it did last year.

Year Vulnerabilities Average Score
2022 0 0.00
2021 1 5.90
2020 0 0.00
2019 0 0.00
2018 0 0.00

It may take a day or so for new Simatic Logon vulnerabilities to show up in the stats or in the list of recent security vulnerabilties. Additionally vulnerabilities may be tagged under a different product or component name.

Recent Siemens Simatic Logon Security Vulnerabilities

An OpenSSL TLS server may crash if sent a maliciously crafted renegotiation ClientHello message from a client

CVE-2021-3449 5.9 - Medium - March 25, 2021

An OpenSSL TLS server may crash if sent a maliciously crafted renegotiation ClientHello message from a client. If a TLSv1.2 renegotiation ClientHello omits the signature_algorithms extension (where it was present in the initial ClientHello), but includes a signature_algorithms_cert extension then a NULL pointer dereference will result, leading to a crash and a denial of service attack. A server is only vulnerable if it has TLSv1.2 and renegotiation enabled (which is the default configuration). OpenSSL TLS clients are not impacted by this issue. All OpenSSL 1.1.1 versions are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1k. OpenSSL 1.0.2 is not impacted by this issue. Fixed in OpenSSL 1.1.1k (Affected 1.1.1-1.1.1j).

NULL Pointer Dereference

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