CVE-2020-25241 | Vulnetix

CVE-2020-25241 PUBLISHED

Reported by siemens · Published March 15, 2021

A vulnerability has been identified in SIMATIC MV400 family (All Versions < V7.0.6). The underlying TCP stack of the affected products does not correctly validate the sequence number for incoming TCP RST packages. An attacker could exploit this to terminate arbitrary TCP sessions.

Fixed versions

Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.

Package	Ecosystem	Fixed in
simatic_mv440_ur_firmware	siemens	7.0.6
simatic_mv440_sr_firmware	siemens	7.0.6
simatic_mv420_sr-p_body_firmware	siemens	7.0.6
simatic_mv420_sr-b_body_firmware	siemens	7.0.6
simatic_mv440_hr_firmware	siemens	7.0.6

Affected products

Vendor	Product	Versions
Siemens	SIMATIC MV400 family	All Versions < V7.0.6
Siemens	SIMATIC MV400 family	*

Timeline

Mar 9, 2021 CVE Published
Apr 14, 2021 EPSS Score (30 in total, the first dated here)
Jun 1, 2026 Security Advisory
Sep 2, 2026 Coalition ESS Score

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vulnetix vdb fixes CVE-2020-25241

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References

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