CVE-2023-46156
No known exploitation. EPSS puts it in the 68th percentile. A vendor fix is available.
What to do
The vendor has published a fix. Version details are below where the sources state them.
What it is
From the CVE record
Affected devices improperly handle specially crafted packets sent to port 102/tcp. This could allow an attacker to create a denial of service condition. A restart is needed to restore normal operations.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
1.2% chance of exploitation activity in the next 30 days, which ranks it in the 68th percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
6 events over 926 days, from the signal feeds we watch.
- OpenVAS check added
- Patch availablerecord updated
- Publishedweakness classified, att&ck mapped
Affected products
- SIMATIC Drive Controller CPU 1504D TFICS / OT / IoT
- SIMATIC Drive Controller CPU 1507D TFICS / OT / IoT
- SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants)ICS / OT / IoT
- SIMATIC S7-1500 CPU 1510SP F-1 PNICS / OT / IoT
- SIMATIC S7-1500 CPU 1510SP-1 PNICS / OT / IoT
- SIMATIC S7-1500 CPU 1511-1 PNICS / OT / IoT
- SIMATIC S7-1500 CPU 1511C-1 PNICS / OT / IoT
- SIMATIC S7-1500 CPU 1511F-1 PNICS / OT / IoT
And 218 more affected products. See all after sign-in
Technical detail
CVSS 3.1 vector
Open in the CVSS calculatorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Scored 7.5 by NVD.
How it is reached
- Attack Vector NetworkExploitable remotely over the network without any special conditions
- Attack Complexity LowNo special conditions — the attack can be reliably reproduced
- Privileges Required NoneNo authentication required — anyone can exploit this
- User Interaction NoneNo user interaction needed — fully automated exploitation
Scope
- Scope UnchangedImpact is limited to the vulnerable component itself
Impact if exploited
- Confidentiality NoneNo confidentiality impact
- Integrity NoneNo integrity impact
- Availability HighTotal denial of service — the component is completely unavailable
Weaknesses
ATT&CK techniques
Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.
- Initial AccessT1190Exploit Public-Facing Applicationhigh confidence
- Privilege EscalationT1068Exploitation for Privilege Escalationhigh confidence
Sources
References in the record
- cert-portal.siemens.com/productcert/pdf/ssa-592380.pdf
- cert-portal.siemens.com/productcert/pdf/ssa-280603.pdf
- cert-portal.siemens.com/productcert/html/ssa-592380.html
And 11 more references. See all after sign-in
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