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CVE-2026-43030

Last refreshed2026-10-06

Status: UPDATED  |  Advisory ID: CVE-2026-43030

Key Details

CVECVE-2026-43030
CVSS Score / Version7.8 (High) / CVSS v3.1
Updated2026-07-14
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS Proseattack vector is local; attack complexity is low; privileges required is low; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected productsSiemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP, Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP, and Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP

Affected Products, Subsystems & Sectors

VendorProductAffected VersionsPatch Status
SiemensSIMATIC S7-1500 CPU 1518-4 PN/DP MFP
SiemensSIMATIC S7-1500 CPU 1518F-4 PN/DP MFP
SiemensSIPLUS S7-1500 CPU 1518-4 PN/DP MFP
SubsystemsGeneral OT
SectorsMultiple

What to Know

In the Linux kernel, the following vulnerability has been resolved:

bpf: Fix regsafe() for pointers to packet

In case rold->reg->range == BEYOND_PKT_END && rcur->reg->range == N

regsafe() may return true which may lead to current state with

valid packet range not being explored. Fix the bug. (NVD)

What to Do

Monitor Siemens's web page for any future patch releases.

References

SourceReference
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-43030
CVEhttps://www.cve.org/CVERecord?id=CVE-2026-43030