CVE-2025-40833
Detail
Awaiting Enrichment This CVE record has been marked for NVD enrichment efforts.
Description
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.
Metrics
CVSS Version 4.0
CVSS Version 3.x
CVSS Version 2.0
NVD enrichment efforts reference publicly available information to associate
vector strings. CVSS information contributed by other sources is also
displayed.
CVSS 4.0 Severity and Vector Strings:
NVD assessment
not yet provided.
Vector: 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
CVSS 3.x Severity and Vector Strings:
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 Severity and Vector Strings:
NVD assessment
not yet provided.
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Weakness Enumeration
CWE-ID
CWE Name
Source
CWE-476
NULL Pointer Dereference
Siemens AG
Change History
4 change records found show changes
CVE Modified by Siemens AG
7/14/2026 6:16:30 AM
Action
Type
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Affected
Record truncated, showing 2048 of 53273 characters.
View Entire Change Record [{"vendor":"Siemens","product":"IE/PB LINK HA","defaultStatus":"unknown","versions":[{"version":"0","lessThan":"*","versionType":"custom","status":"affected"}]},{"vendor":"Siemens","product":"IE/PB link PN IO","defaultStatus":"unknown","versions":[{"version":"0","lessThan":"*","versionType":"custom","status":"affected"}]},{"vendor":"Siemens","product":"RUGGEDCOM RM1224 LTE(4G) EU","defaultStatus":"unknown","versions":[{"version":"0","lessThan":"V8.3","versionType":"custom","status":"affected"}]},{"vendor":"Siemens","product":"RUGGEDCOM RM1224 LTE(4G) NAM","defaultStatus":"unknown","versions":[{"version":"0","lessThan":"V8.3","versionType":"custom","status":"affected"}]},{"vendor":"Siemens","product":"SCALANCE M804PB","defaultStatus":"unknown","versions":[{"version":"0","lessThan":"V8.3","versionType":"custom","status":"affected"}]},{"vendor":"Siemens","product":"SCALANCE M812-1 ADSL-Router","defaultStatus":"unknown","versions":[{"version":"0","lessThan":"V8.3","versionType":"custom","status":"affected"}]},{"vendor":"Siemens","product":"SCALANCE M812-1 ADSL-Router","defaultStatus":"unknown","versions":[{"version":"0","lessThan":"V8.3","versionType":"custom","status":"affected"}]},{"vendor":"Siemens","product":"SCALANCE M816-1 ADSL-Router","defaultStatus":"unknown","versions":[{"version":"0","lessThan":"V8.3","versionType":"custom","status":"affected"}]},{"vendor":"Siemens","product":"SCALANCE M816-1 ADSL-Router","defaultStatus":"unknown","versions":[{"version":"0","lessThan":"V8.3","versionType":"custom","status":"affected"}]},{"vendor":"Siemens","product":"SCALANCE M826-2 SHDSL-Router","defaultStatus":"unknown","versions":[{"version":"0","lessThan":"V8.3","versionType":"custom","status":"affected"}]},{"vendor":"Siemens","product":"SCALANCE M874-2","defaultStatus":"unknown","versions":[{"version":"0","lessThan":"V8.3","versionType":"custom","status":"affected"}]},{"vendor":"Siemens","product":"SCALANCE M874-3","defaultStatus":"unknown","versions":[{"version":"0","lessThan":"V8.3","versionType":"custom","status":"a
Record truncated, showing 2048 of 53291 characters.
View Entire Change Record [{"vendor":"Siemens","product":"IE/PB LINK HA","defaultStatus":"unknown","versions":[{"version":"0","lessThan":"*","versionType":"custom","status":"affected"}]},{"vendor":"Siemens","product":"IE/PB link PN IO","defaultStatus":"unknown","versions":[{"version":"0","lessThan":"*","versionType":"custom","status":"affected"}]},{"vendor":"Siemens","product":"RUGGEDCOM RM1224 LTE(4G) EU","defaultStatus":"unknown","versions":[{"version":"0","lessThan":"V8.3","versionType":"custom","status":"affected"}]},{"vendor":"Siemens","product":"RUGGEDCOM RM1224 LTE(4G) NAM","defaultStatus":"unknown","versions":[{"version":"0","lessThan":"V8.3","versionType":"custom","status":"affected"}]},{"vendor":"Siemens","product":"SCALANCE M804PB","defaultStatus":"unknown","versions":[{"version":"0","lessThan":"V8.3","versionType":"custom","status":"affected"}]},{"vendor":"Siemens","product":"SCALANCE M812-1 ADSL-Router","defaultStatus":"unknown","versions":[{"version":"0","lessThan":"V8.3","versionType":"custom","status":"affected"}]},{"vendor":"Siemens","product":"SCALANCE M812-1 ADSL-Router","defaultStatus":"unknown","versions":[{"version":"0","lessThan":"V8.3","versionType":"custom","status":"affected"}]},{"vendor":"Siemens","product":"SCALANCE M816-1 ADSL-Router","defaultStatus":"unknown","versions":[{"version":"0","lessThan":"V8.3","versionType":"custom","status":"affected"}]},{"vendor":"Siemens","product":"SCALANCE M816-1 ADSL-Router","defaultStatus":"unknown","versions":[{"version":"0","lessThan":"V8.3","versionType":"custom","status":"affected"}]},{"vendor":"Siemens","product":"SCALANCE M826-2 SHDSL-Router","defaultStatus":"unknown","versions":[{"version":"0","lessThan":"V8.3","versionType":"custom","status":"affected"}]},{"vendor":"Siemens","product":"SCALANCE M874-2","defaultStatus":"unknown","versions":[{"version":"0","lessThan":"V8.3","versionType":"custom","status":"affected"}]},{"vendor":"Siemens","product":"SCALANCE M874-3","defaultStatus":"unknown","versions":[{"version":"0","lessThan":"V8.3","versionType":"custom","status":"a
CVE Modified by CISA-ADP
6/17/2026 5:22:11 AM
Action
Type
Old Value
New Value
Added
SSVC
{"timestamp":"2026-05-12T13:30:35.282908Z","id":"CVE-2025-40833","options":[{"exploitation":"none"},{"automatable":"yes"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}
CVE Modified by Siemens AG
6/17/2026 5:22:11 AM
Action
Type
Old Value
New Value
Added
Affected
Record truncated, showing 2048 of 53273 characters.
View Entire Change Record [{"vendor":"Siemens","product":"IE/PB LINK HA","defaultStatus":"unknown","versions":[{"version":"0","lessThan":"*","versionType":"custom","status":"affected"}]},{"vendor":"Siemens","product":"IE/PB link PN IO","defaultStatus":"unknown","versions":[{"version":"0","lessThan":"*","versionType":"custom","status":"affected"}]},{"vendor":"Siemens","product":"RUGGEDCOM RM1224 LTE(4G) EU","defaultStatus":"unknown","versions":[{"version":"0","lessThan":"V8.3","versionType":"custom","status":"affected"}]},{"vendor":"Siemens","product":"RUGGEDCOM RM1224 LTE(4G) NAM","defaultStatus":"unknown","versions":[{"version":"0","lessThan":"V8.3","versionType":"custom","status":"affected"}]},{"vendor":"Siemens","product":"SCALANCE M804PB","defaultStatus":"unknown","versions":[{"version":"0","lessThan":"V8.3","versionType":"custom","status":"affected"}]},{"vendor":"Siemens","product":"SCALANCE M812-1 ADSL-Router","defaultStatus":"unknown","versions":[{"version":"0","lessThan":"V8.3","versionType":"custom","status":"affected"}]},{"vendor":"Siemens","product":"SCALANCE M812-1 ADSL-Router","defaultStatus":"unknown","versions":[{"version":"0","lessThan":"V8.3","versionType":"custom","status":"affected"}]},{"vendor":"Siemens","product":"SCALANCE M816-1 ADSL-Router","defaultStatus":"unknown","versions":[{"version":"0","lessThan":"V8.3","versionType":"custom","status":"affected"}]},{"vendor":"Siemens","product":"SCALANCE M816-1 ADSL-Router","defaultStatus":"unknown","versions":[{"version":"0","lessThan":"V8.3","versionType":"custom","status":"affected"}]},{"vendor":"Siemens","product":"SCALANCE M826-2 SHDSL-Router","defaultStatus":"unknown","versions":[{"version":"0","lessThan":"V8.3","versionType":"custom","status":"affected"}]},{"vendor":"Siemens","product":"SCALANCE M874-2","defaultStatus":"unknown","versions":[{"version":"0","lessThan":"V8.3","versionType":"custom","status":"affected"}]},{"vendor":"Siemens","product":"SCALANCE M874-3","defaultStatus":"unknown","versions":[{"version":"0","lessThan":"V8.3","versionType":"custom","status":"a
New CVE Received from Siemens AG
5/12/2026 6:16:41 AM
Action
Type
Old Value
New Value
Added
Description
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.
Added
CVSS V4.0
AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Added
CVSS V3.1
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Added
CWE
CWE-476
Added
Reference
https://cert-portal.siemens.com/productcert/html/ssa-392349.html
Quick Info
CVE Dictionary Entry: CVE-2025-40833 NVD
Published Date: 05/12/2026 NVD
Last Modified: 07/14/2026
Source: Siemens AG
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