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Fencer Vulns
high 7.5

CVE-2023-46156 json

Affected devices improperly handle specially crafted packets sent to port 102/tcp.

published 2023-12-12 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-50399

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.2%
EPSS 1.2% chance of exploitation in 30 days, percentile 69%
public exploits
0
none known

Summary

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.

Patch / fix

  • Siemens SIMATIC Drive Controller CPU 1504D TF V3.1.0
  • Siemens SIMATIC Drive Controller CPU 1507D TF V3.1.0
  • Siemens SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) V30.1.0
  • Siemens SIMATIC S7-1500 CPU 1510SP F-1 PN V3.1.0
  • Siemens SIMATIC S7-1500 CPU 1510SP-1 PN V3.1.0
  • Siemens SIMATIC S7-1500 CPU 1511-1 PN V3.1.0
  • Siemens SIMATIC S7-1500 CPU 1511C-1 PN V3.1.0
  • Siemens SIMATIC S7-1500 CPU 1511F-1 PN V3.1.0
  • Siemens SIMATIC S7-1500 CPU 1511T-1 PN V3.1.0
  • Siemens SIMATIC S7-1500 CPU 1511TF-1 PN V3.1.0
  • Siemens SIMATIC S7-1500 CPU 1512C-1 PN V3.1.0
  • Siemens SIMATIC S7-1500 CPU 1512SP F-1 PN V3.1.0
  • Siemens SIMATIC S7-1500 CPU 1512SP-1 PN V3.1.0
  • Siemens SIMATIC S7-1500 CPU 1513-1 PN V3.1.0
  • Siemens SIMATIC S7-1500 CPU 1513F-1 PN V3.1.0
  • Siemens SIMATIC S7-1500 CPU 1513R-1 PN V3.1.2
  • Siemens SIMATIC S7-1500 CPU 1514SP F-2 PN V3.1.0
  • Siemens SIMATIC S7-1500 CPU 1514SP-2 PN V3.1.0
  • Siemens SIMATIC S7-1500 CPU 1514SPT F-2 PN V3.1.0
  • Siemens SIMATIC S7-1500 CPU 1514SPT-2 PN V3.1.0
  • Siemens SIMATIC S7-1500 CPU 1515-2 PN V3.1.0
  • Siemens SIMATIC S7-1500 CPU 1515F-2 PN V3.1.0
  • Siemens SIMATIC S7-1500 CPU 1515R-2 PN V3.1.2
  • Siemens SIMATIC S7-1500 CPU 1515T-2 PN V3.1.0
  • Siemens SIMATIC S7-1500 CPU 1515TF-2 PN V3.1.0
  • Siemens SIMATIC S7-1500 CPU 1516-3 PN/DP V3.1.0
  • Siemens SIMATIC S7-1500 CPU 1516F-3 PN/DP V3.1.0
  • Siemens SIMATIC S7-1500 CPU 1516T-3 PN/DP V3.1.0
  • Siemens SIMATIC S7-1500 CPU 1516TF-3 PN/DP V3.1.0
  • Siemens SIMATIC S7-1500 CPU 1517-3 PN/DP V3.1.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-23-348-11 updated cvss 7.5

Siemens SINUMERIK

  • Siemens SINUMERIK MC <V1.24
    affected: fixed in V1.24, mitigation
  • Siemens SINUMERIK ONE <V6.24
    affected: fixed in V6.24, mitigation

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

cisa ICSA-23-348-09 updated cvss 7.5

Siemens Simantic S7-1500 CPU family

  • Siemens SIMATIC Drive Controller CPU 1504D TF (6ES7615-4DF10-0AB0) <V3.1.0 Siemens SIMATIC Drive Controller CPU 1507D TF (6ES7615-7DF10-0AB0) <V3.1.0
    affected: fixed in V3.1.0, mitigation support.industry.siemens.com
  • Siemens SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) <V30.1.0
    affected: fixed in V30.1.0, mitigation
  • Siemens SIMATIC S7-1500 CPU 1510SP F-1 PN (6ES7510-1SJ00-0AB0) Siemens SIMATIC S7-1500 CPU 1510SP F-1 PN (6ES7510-1SJ01-0AB0)
    affected: mitigation, no fix planned
  • Siemens SIMATIC S7-1500 CPU 1510SP F-1 PN (6ES7510-1SK03-0AB0) <V3.1.0
    affected: fixed in V3.1.0, mitigation support.industry.siemens.com
  • Siemens SIMATIC S7-1500 CPU 1510SP-1 PN (6ES7510-1DJ00-0AB0) Siemens SIMATIC S7-1500 CPU 1510SP-1 PN (6ES7510-1DJ01-0AB0)
    affected: mitigation, no fix planned
  • Siemens SIMATIC S7-1500 CPU 1510SP-1 PN (6ES7510-1DK03-0AB0) <V3.1.0
    affected: fixed in V3.1.0, mitigation support.industry.siemens.com
  • Siemens SIMATIC S7-1500 CPU 1511-1 PN (6ES7511-1AK00-0AB0) Siemens SIMATIC S7-1500 CPU 1511-1 PN (6ES7511-1AK01-0AB0) Siemens SIMATIC S7-1500 CPU 1511-1 PN (6ES7511-1AK02-0AB0)
    affected: mitigation, no fix planned
  • Siemens SIMATIC S7-1500 CPU 1511-1 PN (6ES7511-1AL03-0AB0) <V3.1.0
    affected: fixed in V3.1.0, mitigation support.industry.siemens.com
show 17 more
  • Siemens SIMATIC S7-1500 CPU 1511C-1 PN (6ES7511-1CK00-0AB0) Siemens SIMATIC S7-1500 CPU 1511C-1 PN (6ES7511-1CK01-0AB0)
    affected: mitigation, no fix planned
  • Siemens SIMATIC S7-1500 CPU 1511C-1 PN (6ES7511-1CL03-0AB0) <V3.1.0
    affected: fixed in V3.1.0, mitigation support.industry.siemens.com
  • Siemens SIMATIC S7-1500 CPU 1511F-1 PN (6ES7511-1FK00-0AB0) Siemens SIMATIC S7-1500 CPU 1511F-1 PN (6ES7511-1FK01-0AB0) Siemens SIMATIC S7-1500 CPU 1511F-1 PN (6ES7511-1FK02-0AB0)
    affected: mitigation, no fix planned
  • Siemens SIMATIC S7-1500 CPU 1511F-1 PN (6ES7511-1FL03-0AB0) <V3.1.0
    affected: fixed in V3.1.0, mitigation support.industry.siemens.com
  • Siemens SIMATIC S7-1500 CPU 1511T-1 PN (6ES7511-1TK01-0AB0)
    affected: mitigation, no fix planned
  • Siemens SIMATIC S7-1500 CPU 1511T-1 PN (6ES7511-1TL03-0AB0) <V3.1.0
    affected: fixed in V3.1.0, mitigation support.industry.siemens.com
  • Siemens SIMATIC S7-1500 CPU 1511TF-1 PN (6ES7511-1UK01-0AB0)
    affected: mitigation, no fix planned
  • Siemens SIMATIC S7-1500 CPU 1511TF-1 PN (6ES7511-1UL03-0AB0) <V3.1.0
    affected: fixed in V3.1.0, mitigation support.industry.siemens.com
  • Siemens SIMATIC S7-1500 CPU 1512C-1 PN (6ES7512-1CK00-0AB0) Siemens SIMATIC S7-1500 CPU 1512C-1 PN (6ES7512-1CK01-0AB0)
    affected: mitigation, no fix planned
  • Siemens SIMATIC S7-1500 CPU 1512C-1 PN (6ES7512-1CM03-0AB0) <V3.1.0
    affected: fixed in V3.1.0, mitigation support.industry.siemens.com
  • Siemens SIMATIC S7-1500 CPU 1512SP F-1 PN (6ES7512-1SK00-0AB0) Siemens SIMATIC S7-1500 CPU 1512SP F-1 PN (6ES7512-1SK01-0AB0)
    affected: mitigation, no fix planned
  • Siemens SIMATIC S7-1500 CPU 1512SP F-1 PN (6ES7512-1SM03-0AB0) <V3.1.0
    affected: fixed in V3.1.0, mitigation support.industry.siemens.com
  • Siemens SIMATIC S7-1500 CPU 1512SP-1 PN (6ES7512-1DK00-0AB0) Siemens SIMATIC S7-1500 CPU 1512SP-1 PN (6ES7512-1DK01-0AB0)
    affected: mitigation, no fix planned
  • Siemens SIMATIC S7-1500 CPU 1512SP-1 PN (6ES7512-1DM03-0AB0) <V3.1.0
    affected: fixed in V3.1.0, mitigation support.industry.siemens.com
  • Siemens SIMATIC S7-1500 CPU 1513-1 PN (6ES7513-1AL00-0AB0) Siemens SIMATIC S7-1500 CPU 1513-1 PN (6ES7513-1AL01-0AB0) Siemens SIMATIC S7-1500 CPU 1513-1 PN (6ES7513-1AL02-0AB0)
    affected: mitigation, no fix planned
  • Siemens SIMATIC S7-1500 CPU 1513-1 PN (6ES7513-1AM03-0AB0) <V3.1.0
    affected: fixed in V3.1.0, mitigation support.industry.siemens.com
  • Siemens SIMATIC S7-1500 CPU 1513F-1 PN (6ES7513-1FL00-0AB0) Siemens SIMATIC S7-1500 CPU 1513F-1 PN (6ES7513-1FL01-0AB0) Siemens SIMATIC S7-1500 CPU 1513F-1 PN (6ES7513-1FL02-0AB0)
    affected: mitigation, no fix planned

111 more affected in the full advisory

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
2 y ago

Exploit prediction

1.24% chance of exploitation in the next 30 days, higher than 69% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

  • Siemens SIMATIC Drive Controller CPU 1504D TF
  • Siemens SIMATIC Drive Controller CPU 1507D TF
  • Siemens SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants)
  • Siemens SIMATIC S7-1500 CPU 1510SP F-1 PN
  • Siemens SIMATIC S7-1500 CPU 1510SP-1 PN
  • Siemens SIMATIC S7-1500 CPU 1511-1 PN
  • Siemens SIMATIC S7-1500 CPU 1511C-1 PN
  • Siemens SIMATIC S7-1500 CPU 1511F-1 PN
  • Siemens SIMATIC S7-1500 CPU 1511T-1 PN
  • Siemens SIMATIC S7-1500 CPU 1511TF-1 PN
  • Siemens SIMATIC S7-1500 CPU 1512C-1 PN
  • Siemens SIMATIC S7-1500 CPU 1512SP F-1 PN
  • Siemens SIMATIC S7-1500 CPU 1512SP-1 PN
  • Siemens SIMATIC S7-1500 CPU 1513-1 PN
  • Siemens SIMATIC S7-1500 CPU 1513F-1 PN
  • Siemens SIMATIC S7-1500 CPU 1513R-1 PN
  • Siemens SIMATIC S7-1500 CPU 1514SP F-2 PN
  • Siemens SIMATIC S7-1500 CPU 1514SP-2 PN
  • Siemens SIMATIC S7-1500 CPU 1514SPT F-2 PN
  • Siemens SIMATIC S7-1500 CPU 1514SPT-2 PN
  • Siemens SIMATIC S7-1500 CPU 1515-2 PN
  • Siemens SIMATIC S7-1500 CPU 1515F-2 PN
  • Siemens SIMATIC S7-1500 CPU 1515R-2 PN
  • Siemens SIMATIC S7-1500 CPU 1515T-2 PN
  • Siemens SIMATIC S7-1500 CPU 1515TF-2 PN
  • Siemens SIMATIC S7-1500 CPU 1516-3 PN/DP
  • Siemens SIMATIC S7-1500 CPU 1516F-3 PN/DP
  • Siemens SIMATIC S7-1500 CPU 1516T-3 PN/DP
  • Siemens SIMATIC S7-1500 CPU 1516TF-3 PN/DP
  • Siemens SIMATIC S7-1500 CPU 1517-3 PN/DP
  • Siemens SIMATIC S7-1500 CPU 1517F-3 PN/DP
  • Siemens SIMATIC S7-1500 CPU 1517H-3 PN
  • Siemens SIMATIC S7-1500 CPU 1517T-3 PN/DP
  • Siemens SIMATIC S7-1500 CPU 1517TF-3 PN/DP
  • Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP
  • Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP
  • Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP
  • Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP
  • Siemens SIMATIC S7-1500 CPU 1518HF-4 PN
  • Siemens SIMATIC S7-1500 CPU 1518T-4 PN/DP
  • Siemens SIMATIC S7-1500 CPU 1518TF-4 PN/DP
  • Siemens SIMATIC S7-1500 CPU S7-1518-4 PN/DP ODK
  • Siemens SIMATIC S7-1500 CPU S7-1518F-4 PN/DP ODK
  • Siemens SIMATIC S7-1500 ET 200pro: CPU 1513PRO F-2 PN
  • Siemens SIMATIC S7-1500 ET 200pro: CPU 1513PRO-2 PN
  • Siemens SIMATIC S7-1500 ET 200pro: CPU 1516PRO F-2 PN
  • Siemens SIMATIC S7-1500 ET 200pro: CPU 1516PRO-2 PN
  • Siemens SIMATIC S7-1500 Software Controller
  • Siemens SIMATIC S7-PLCSIM Advanced
  • Siemens SINUMERIK MC

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.