High 7.5Published May 12, 2026

CVE-2025-40833The affected devices contain a null pointer dereference vulnerability while processing specially crafted IPv4 requests.

Updated under an hour ago (Oct 27, 2026, 4:30 PM ET)

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It affects Siemens IE/PB LINK HA and 59 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Siemens IE/PB LINK HA

Exploited in the last 30 days

The affected devices contain a null pointer dereference vulnerability while processing specially crafted IPv4 requests. This could allow an attacker to cause denial of service condition. A manual restart is required to recover the system.

CVSS: 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-476
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: siemens
NVD analysis: Awaiting Analysis
Record last updated: Aug 11, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Siemens IE/PB LINK HA siemens:ie_pb_link_ha (from the name)	before V4.1.2	CNA record
Siemens IE/PB link PN IO siemens:ie_pb_link_pn_io (from the name)	all versions	CNA record
Siemens RUGGEDCOM RM1224 LTE(4G) EU siemens:ruggedcom_rm1224_lte_4g_eu (from the name)	before V8.3	CNA record
Siemens RUGGEDCOM RM1224 LTE(4G) NAM siemens:ruggedcom_rm1224_lte_4g_nam (from the name)	before V8.3	CNA record
Siemens SCALANCE M804PB siemens:scalance_m804pb (from the name)	before V8.3	CNA record
Siemens SCALANCE M812-1 ADSL-Router siemens:scalance_m812_1_adsl_router (from the name)	before V8.3	CNA record
Siemens SCALANCE M816-1 ADSL-Router siemens:scalance_m816_1_adsl_router (from the name)	before V8.3	CNA record
Siemens SCALANCE M826-2 SHDSL-Router siemens:scalance_m826_2_shdsl_router (from the name)	before V8.3	CNA record
Siemens SCALANCE M874-2 siemens:scalance_m874_2 (from the name)	before V8.3	CNA record
Siemens SCALANCE M874-3 siemens:scalance_m874_3 (from the name)	before V8.3	CNA record
1–10 of 60

References

References

https://cert-portal.siemens.com/productcert/html/ssa-392349.html

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.