CVE-2021-25663

CVSS 8.7 HIGHEPSS 1.9%CWE-835

Vexday Risk Score

21Baixo

Decisão SSVC (CISA)

Track

Sem sinal de exploração → monitorar

CVSS 8.7EPSS 1.9%KEV nãoPoC —Nuclei —Metasploit —Patch —

Ciclo de vida

22 abr 2021Publicada no NVD

Recomendação: Monitorar — sem sinal de exploração no momento.

A vulnerability has been identified in Capital Embedded AR Classic 431-422 (All versions), Capital Embedded AR Classic R20-11 (All versions < V2303), Nucleus NET (All versions), Nucleus ReadyStart V3 (All versions < V2017.02.4), Nucleus ReadyStart V4 (All versions < V4.1.0), Nucleus Source Code (All versions including affected IPv6 stack). The function that processes IPv6 headers does not check the lengths of extension header options, allowing attackers to put this function into an infinite loop with crafted length values.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Produtos afetados

Siemens · Capital Embedded AR Classic 431-422 Siemens · Capital Embedded AR Classic R20-11 Siemens · Nucleus NET Siemens · Nucleus ReadyStart V3 Siemens · Nucleus ReadyStart V4 Siemens · Nucleus Source Code

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Referências

https://cert-portal.siemens.com/productcert/html/ssa-248289.html https://cert-portal.siemens.com/productcert/pdf/ssa-248289.pdf https://us-cert.cisa.gov/ics/advisories/icsa-21-103-05