# Deadlock in Siemens SIMATIC CP 1242-7 V2 and others CVE record · `CVE-2022-43767` - **Identifiers:** `CVE-2022-43767` - **State:** Confirmed - **Severity:** CVSS 7.5 High - **Critical:** No - **CNA:** siemens - **Weakness (CWE):** [CWE-833](https://cwe.mitre.org/data/definitions/833.html) - **Tags:** [Denial of service](https://agentprime.io/advisories/tag/dos.md) - **Technologies:** [Siemens SIMATIC CP 1242-7 V2](https://agentprime.io/advisories/technology/siemens-simatic-cp-1242-7-v2.md) · [Siemens SIMATIC CP 1243-1](https://agentprime.io/advisories/technology/siemens-simatic-cp-1243-1.md) · [Siemens SIMATIC CP 1243-1 DNP3 (incl. SIPLUS variants)](https://agentprime.io/advisories/technology/siemens-simatic-cp-1243-1-dnp3-incl-siplus-variants.md) · [Siemens SIMATIC CP 1243-1 IEC (incl. SIPLUS variants)](https://agentprime.io/advisories/technology/siemens-simatic-cp-1243-1-iec-incl-siplus-variants.md) · [Siemens SIMATIC CP 1243-7 LTE EU](https://agentprime.io/advisories/technology/siemens-simatic-cp-1243-7-lte-eu.md) · [Siemens SIMATIC CP 1243-7 LTE US](https://agentprime.io/advisories/technology/siemens-simatic-cp-1243-7-lte-us.md) · [Siemens SIMATIC CP 1243-8 IRC](https://agentprime.io/advisories/technology/siemens-simatic-cp-1243-8-irc.md) · [Siemens SIMATIC CP 1542SP-1](https://agentprime.io/advisories/technology/siemens-simatic-cp-1542sp-1.md) · [Siemens SIMATIC CP 1542SP-1 IRC](https://agentprime.io/advisories/technology/siemens-simatic-cp-1542sp-1-irc.md) · [Siemens SIMATIC CP 1543SP-1](https://agentprime.io/advisories/technology/siemens-simatic-cp-1543sp-1.md) · [Siemens SIMATIC CP 443-1](https://agentprime.io/advisories/technology/siemens-simatic-cp-443-1.md) · [Siemens SIMATIC CP 443-1 Advanced](https://agentprime.io/advisories/technology/siemens-simatic-cp-443-1-advanced.md) · [Siemens SIPLUS ET 200SP CP 1542SP-1 IRC TX RAIL](https://agentprime.io/advisories/technology/siemens-siplus-et-200sp-cp-1542sp-1-irc-tx-rail.md) · [Siemens SIPLUS ET 200SP CP 1543SP-1 ISEC](https://agentprime.io/advisories/technology/siemens-siplus-et-200sp-cp-1543sp-1-isec.md) · [Siemens SIPLUS ET 200SP CP 1543SP-1 ISEC TX RAIL](https://agentprime.io/advisories/technology/siemens-siplus-et-200sp-cp-1543sp-1-isec-tx-rail.md) · [Siemens SIPLUS NET CP 1242-7 V2](https://agentprime.io/advisories/technology/siemens-siplus-net-cp-1242-7-v2.md) · [Siemens SIPLUS NET CP 443-1](https://agentprime.io/advisories/technology/siemens-siplus-net-cp-443-1.md) · [Siemens SIPLUS NET CP 443-1 Advanced](https://agentprime.io/advisories/technology/siemens-siplus-net-cp-443-1-advanced.md) · [Siemens SIPLUS S7-1200 CP 1243-1](https://agentprime.io/advisories/technology/siemens-siplus-s7-1200-cp-1243-1.md) · [Siemens SIPLUS S7-1200 CP 1243-1 RAIL](https://agentprime.io/advisories/technology/siemens-siplus-s7-1200-cp-1243-1-rail.md) - **Published:** 11 Apr 2023 - **Updated:** 10 Sept 2024 - **Reviewed by a person:** No Published by the CVE Program (CNA: siemens) at 11 Apr 2023, 09:02 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. ## Affected products, as the CNA wrote them - Vendor: Siemens. Product: SIMATIC CP 1242-7 V2. - affected: `before V3.4.29` (custom) - Other versions: unknown - Vendor: Siemens. Product: SIMATIC CP 1243-1. - affected: `before V3.4.29` (custom) - Other versions: unknown - Vendor: Siemens. Product: SIMATIC CP 1243-1 DNP3 (incl. SIPLUS variants). - affected: `before V3.4.29` (custom) - Other versions: unknown - Vendor: Siemens. Product: SIMATIC CP 1243-1 IEC (incl. SIPLUS variants). - affected: `before V3.4.29` (custom) - Other versions: unknown - Vendor: Siemens. Product: SIMATIC CP 1243-7 LTE EU. - affected: `before V3.4.29` (custom) - Other versions: unknown - Vendor: Siemens. Product: SIMATIC CP 1243-7 LTE US. - affected: `before V3.4.29` (custom) - Other versions: unknown - Vendor: Siemens. Product: SIMATIC CP 1243-8 IRC. - affected: `before V3.4.29` (custom) - Other versions: unknown - Vendor: Siemens. Product: SIMATIC CP 1542SP-1. - affected: `before V2.3` (custom) - Other versions: unknown - Vendor: Siemens. Product: SIMATIC CP 1542SP-1 IRC. - affected: `before V2.3` (custom) - Other versions: unknown - Vendor: Siemens. Product: SIMATIC CP 1543SP-1. - affected: `before V2.3` (custom) - Other versions: unknown - Vendor: Siemens. Product: SIMATIC CP 443-1. - affected: `before V3.3` (custom) - Other versions: unknown - Vendor: Siemens. Product: SIMATIC CP 443-1. - affected: `before V3.3` (custom) - Other versions: unknown - Vendor: Siemens. Product: SIMATIC CP 443-1 Advanced. - affected: `before V3.3` (custom) - Other versions: unknown - Vendor: Siemens. Product: SIPLUS ET 200SP CP 1542SP-1 IRC TX RAIL. - affected: `before V2.3` (custom) - Other versions: unknown - Vendor: Siemens. Product: SIPLUS ET 200SP CP 1543SP-1 ISEC. - affected: `before V2.3` (custom) - Other versions: unknown - Vendor: Siemens. Product: SIPLUS ET 200SP CP 1543SP-1 ISEC TX RAIL. - affected: `before V2.3` (custom) - Other versions: unknown - Vendor: Siemens. Product: SIPLUS NET CP 1242-7 V2. - affected: `before V3.4.29` (custom) - Other versions: unknown - Vendor: Siemens. Product: SIPLUS NET CP 443-1. - affected: `before V3.3` (custom) - Other versions: unknown - Vendor: Siemens. Product: SIPLUS NET CP 443-1 Advanced. - affected: `before V3.3` (custom) - Other versions: unknown - Vendor: Siemens. Product: SIPLUS S7-1200 CP 1243-1. - affected: `before V3.4.29` (custom) - Other versions: unknown - Vendor: Siemens. Product: SIPLUS S7-1200 CP 1243-1 RAIL. - affected: `before V3.4.29` (custom) - Other versions: unknown - Vendor: Siemens. Product: SIPLUS TIM 1531 IRC. - affected: `before V2.3.6` (custom) - Other versions: unknown - Vendor: Siemens. Product: TIM 1531 IRC. - affected: `before V2.3.6` (custom) - Other versions: unknown ## Not analysed yet We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter. ## Severity and exploitation - 7.5 High, CVSS 3.1: `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`, from CNA (siemens) - **CISA KEV:** Not listed. - **EPSS:** 0.0072, the 54th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days. ## Timeline This record came from the full history of the CVE Program, published 11 Apr 2023. New records show when each source confirmed them. ## Sources - [CVE List: CVE-2022-43767](https://www.cve.org/CVERecord?id=CVE-2022-43767) - [NVD: CVE-2022-43767](https://nvd.nist.gov/vuln/detail/CVE-2022-43767) ### References from the CNA - - - Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description. ## Check whether this affects you This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run. - With the agentprime MCP server (), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: - As JSON: - Everything that needs attention now: --- The web page: . Everything for agents: .