SARA / Free Tools / CVE / CVE-2019-10923

CVE-2019-10923 — An attacker with network access to an affected product may cause a denial of ser

An attacker with network access to an affected product may cause a denial of service condition by breaking the real-time synchronization (IRT) of the affected installation.

CVSS
7.5 HIGH
EPSS
0.47% (top 35.80%)
CWE
CWE-400
Published
2019-10-10T13:49:24.000Z
Last modified
2025-02-11T10:26:23.281Z
CVSS vector
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

01What is this vulnerability?

An attacker with network access to an affected product may cause a denial of service condition by breaking the real-time synchronization (IRT) of the affected installation.

02Affected products

VendorProductVersions
SiemensDevelopment/Evaluation Kits for PROFINET IO: DK Standard Ethernet ControllerAll versions < V4.1.1 Patch 05
SiemensDevelopment/Evaluation Kits for PROFINET IO: EKERTEC 200 — All versions < V4.5.0 Patch 01
SiemensDevelopment/Evaluation Kits for PROFINET IO: EKERTEC 200P — All versions < V4.5.0
SiemensSCALANCE X200IRT family (incl. SIPLUS NET variants) — All versions < V5.2.1
SiemensSIMATIC CP 1604All versions < V2.8
SiemensSIMATIC CP 1616All versions < V2.8
SiemensSIMATIC ET 200M (incl. SIPLUS variants)All versions
SiemensSIMATIC ET 200MP IM 1555 PN HF — 0
SiemensSIMATIC ET 200MP IM 1555 PN ST — 0
SiemensSIMATIC ET 200pro IM 1543 PN HF — 0
SiemensSIMATIC ET 200pro IM 1544 PN HF — 0
SiemensSIMATIC ET 200pro IM 1548 PN/DP CPU — All versions < V3.2.17
SiemensSIMATIC ET 200pro IM 1548F PN/DP CPU — All versions < V3.2.17
SiemensSIMATIC ET 200pro IM 1548FX PN/DP CPU — All versions < V3.2.17
SiemensSIMATIC ET 200S IM 1518 PN/DP CPU — All versions < V3.2.17
SiemensSIMATIC ET 200S IM 1518F PN/DP CPU — All versions < V3.2.17
SiemensSIMATIC ET 200SP IM 1556 PN HF — 0
SiemensSIMATIC ET 200SP IM 1556 PN ST — 0
SiemensSIMATIC ET 200SP IM 1556 PN ST BA — 0
SiemensSIMATIC ET200ecoPN, 16DI, DC24V, 8xM12All versions
SiemensSIMATIC ET200ecoPN, 16DO DC24V/1,3A, 8xM12All versions
SiemensSIMATIC ET200ecoPN, 4AO U/I 4xM12All versions
SiemensSIMATIC ET200ecoPN, 8 DIO, DC24V/1,3A, 8xM12All versions
SiemensSIMATIC ET200ecoPN, 8 DO, DC24V/2A, 8xM12All versions
SiemensSIMATIC ET200ecoPN, 8AI RTD/TC 8xM12All versions
SiemensSIMATIC ET200ecoPN, 8AI; 4 U/I; 4 RTD/TC 8xM12All versions
SiemensSIMATIC ET200ecoPN, 8DI, DC24V, 4xM12All versions
SiemensSIMATIC ET200ecoPN, 8DI, DC24V, 8xM12All versions
SiemensSIMATIC ET200ecoPN, 8DO, DC24V/0,5A, 4xM12All versions
SiemensSIMATIC ET200ecoPN, 8DO, DC24V/1,3A, 4xM12All versions
SiemensSIMATIC ET200ecoPN, 8DO, DC24V/1,3A, 8xM12All versions
SiemensSIMATIC ET200ecoPN: IOLink Master — All versions
SiemensSIMATIC ET200S (incl. SIPLUS variants)All versions
SiemensSIMATIC PN/PN Coupler (incl. SIPLUS NET variants)All versions
SiemensSIMATIC S7300 CPU 314C-2 PN/DP — All versions < V3.2.17
SiemensSIMATIC S7300 CPU 315-2 PN/DP — All versions < V3.2.17
SiemensSIMATIC S7300 CPU 315F-2 PN/DP — All versions < V3.2.17
SiemensSIMATIC S7300 CPU 315T-3 PN/DP — All versions < V3.2.17
SiemensSIMATIC S7300 CPU 317-2 PN/DP — All versions < V3.2.17
SiemensSIMATIC S7300 CPU 317F-2 PN/DP — All versions < V3.2.17
SiemensSIMATIC S7300 CPU 317T-3 PN/DP — All versions < V3.2.17
SiemensSIMATIC S7300 CPU 317TF-3 PN/DP — All versions < V3.2.17
SiemensSIMATIC S7300 CPU 319-3 PN/DP — All versions < V3.2.17
SiemensSIMATIC S7300 CPU 319F-3 PN/DP — All versions < V3.2.17
SiemensSIMATIC S7400 CPU 412-2 PN V7 — 0
SiemensSIMATIC S7400 CPU 414-3 PN/DP V7 — 0
SiemensSIMATIC S7400 CPU 414F-3 PN/DP V7 — 0
SiemensSIMATIC S7400 CPU 416-3 PN/DP V7 — 0
SiemensSIMATIC S7400 CPU 416F-3 PN/DP V7 — 0
SiemensSIMATIC S7400 PN/DP V6 and below CPU family (incl. SIPLUS variants) — 0

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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