High Memory corruption

CVE-2025-40809 — Out-of-bounds Write in Siemens Solid Edge Se2024

A vulnerability has been identified in Solid Edge SE2024 (All versions < V224.0 Update 14), Solid Edge SE2025 (All versions < V225.0 Update 6). The affected applications contains an out of bounds write vulnerability while parsing specially crafted PRT files. This could allow an attacker to crash the application or execute code in the context of the current process.

Published Oct 14, 2025 · Updated Oct 13, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP · CNA: siemens

Low

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.

How the score was calculated

EPSS 0.1% (30-day exploitation probability)+0
Technical severity (high)+6

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation

Not confirmed

Not in CISA KEV — an absence of record, not proof it is unexploited.

EPSS FIRST

0.14%

ahead of 3% of scored CVEs · Oct 14, 2026

Affects

Siemens

Solid Edge Se2024 and 1 more

CVSS base

7.8

High · 2 source(s)

CISA SSVC assessment CISA

Three decision points CISA publishes for the CVEs it assesses (SSVC 2.0.3). A stakeholder decision, not a severity score.

Exploitation

None

none · proof-of-concept · active

Automatable

can an attacker script the kill-chain steps

Technical impact

Total

partial · total control of the vulnerable component

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

Identify exposed assets running the affected vendor/product/version combinations (Siemens Solid Edge Se2024, Siemens Solid Edge Se2025).
No fix documented in the sources: reduce exposure and monitor the vendor advisory.
Exploitation requires user interaction: tighten email/web filtering and warn affected users.
Search available logs for exploit probes matching the vulnerability class (memory corruption), errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Vendor	Product	Versions	Status	Source
Siemens	Solid Edge Se2024	version 224.0version 224.0-update_0009version 224.0-update_0008version 224.0-update_0007version 224.0-update_0006version 224.0-update_0005version 224.0-update_0004version 224.0-update_0003 and 7 more version 224.0-update_0002version 224.0-update_00013version 224.0-update_00012version 224.0-update_00011version 224.0-update_00010version 224.0-update_0001versions not specified by the source	Vulnerable	NIST National Vulnerability Database
Siemens	Solid Edge Se2024	< V224.0 Update 14	Vulnerable	CVE Program (cve.org) e CISA ADP
Siemens	Solid Edge Se2025	versions not specified by the sourceversion 225.0version 225.0-update_0001version 225.0-update_0002version 225.0-update_0003version 225.0-update_0004version 225.0-update_0005	Vulnerable	NIST National Vulnerability Database
Siemens	Solid Edge Se2025	< V225.0 Update 6	Vulnerable	CVE Program (cve.org) e CISA ADP

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Attack vector

Local

Attack complexity

Low

Privileges required

None

User interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

Score	Version	Severity	Expl.	Impact	Scored by
7.3	CVSS 4.0	High	—	—	productcert@siemens.com via NIST National Vulnerability Database
7.3	CVSS 4.0	High	—	—	siemens via CVE Program (cve.org) e CISA ADP
7.8	CVSS 3.1	High	1.8	5.9	productcert@siemens.com via NIST National Vulnerability Database
7.8	CVSS 3.1	High	—	—	siemens via CVE Program (cve.org) e CISA ADP

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H (score shown at the top: productcert@siemens.com)

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-787 · Out-of-bounds Write

Other CVEs with this weakness →

EPSS over time FIRST

Oct 13, 2026 → Oct 14, 2026 · 2 reading(s) · max 0.14%

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

Local/physical vector: focus on endpoint telemetry (EDR) from affected hosts.
Correlate service crashes/restarts with inbound traffic; repeated crashes may indicate attempts.

endpoint telemetry (EDR)crash dumps

Timeline

What happened to this CVE, newest first.

2026
Affected products added · siemens/solid edge se2024, siemens/solid edge se2025
Oct 13, 2026 · CVE Program (cve.org) e CISA ADP
SSVC assessment updated
Oct 13, 2026 · CVE Program (cve.org) e CISA ADP
Record published
Oct 13, 2026
CVSS changed · 7.8
Oct 13, 2026 · NIST National Vulnerability Database
Source status changed · → Analyzed
Oct 13, 2026 · NIST National Vulnerability Database
Record created in this database
Oct 13, 2026 · NIST National Vulnerability Database
2025
CVE published
Oct 14, 2025 · siemens

Source activity

Repeated readings are counted rather than listed.

1× Official description updated · Oct 13, 2026 – Oct 13, 2026

References

1 on the record

cert-portal.siemens.com/productcert/html/ssa-541582.html
Vendor Advisory, NIST National Vulnerability Database

Elsewhere on this site

Siemens
every CVE for this vendor

Memory corruption
same class

CWE-787
other pages naming this weakness

Related CVEs (same products)

High CVE-2026-50061 Use After Free in Siemens Solid Edge Se2025 Aug 11, 2026
High CVE-2026-50058 Out-of-bounds Read in Siemens Solid Edge Se2025 Aug 11, 2026
High CVE-2026-50059 Out-of-bounds Write in Siemens Solid Edge Se2025 Aug 11, 2026
High CVE-2026-50060 Use After Free in Siemens Solid Edge Se2025 Aug 11, 2026
High CVE-2026-50063 Out-of-bounds Read in Siemens Solid Edge Se2025 Aug 11, 2026
High CVE-2026-50064 Out-of-bounds Write in Siemens Solid Edge Se2025 Aug 11, 2026

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

No fixed version, patch or mitigation documented.
No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2025-40809 is "Out-of-bounds Write in Siemens Solid Edge Se2024", rated High. It affects Solid Edge Se2024 (Siemens); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 7.8 describes technical severity. EPSS 0.14% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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