CVE-2022-43767

A vulnerability has been identified in SIMATIC CP 1242-7 V2 (6GK7242-7KX31-0XE0) (All versions < V3.4.29), SIMATIC CP 1243-1 (6GK7243-1BX30-0XE0) (All versions < V3.4.29), SIMATIC CP 1243-1 DNP3 (incl. SIPLUS variants) (All versions < V3.4.29), SIMATIC CP 1243-1 IEC (incl. SIPLUS variants) (All versions < V3.4.29), SIMATIC CP 1243-7 LTE EU (6GK7243-7KX30-0XE0) (All versions < V3.4.29), SIMATIC CP 1243-7 LTE US (6GK7243-7SX30-0XE0) (All versions < V3.4.29), SIMATIC CP 1243-8 IRC (6GK7243-8RX30-0XE0) (All versions < V3.4.29), SIMATIC CP 1542SP-1 (6GK7542-6UX00-0XE0) (All versions < V2.3), SIMATIC CP 1542SP-1 IRC (6GK7542-6VX00-0XE0) (All versions < V2.3), SIMATIC CP 1543SP-1 (6GK7543-6WX00-0XE0) (All versions < V2.3), SIMATIC CP 443-1 (6GK7443-1EX30-0XE0) (All versions < V3.3), SIMATIC CP 443-1 (6GK7443-1EX30-0XE1) (All versions < V3.3), SIMATIC CP 443-1 Advanced (6GK7443-1GX30-0XE0) (All versions < V3.3), SIPLUS ET 200SP CP 1542SP-1 IRC TX RAIL (6AG2542-6VX00-4XE0) (All versions < V2.3), SIPLUS ET 200SP CP 1543SP-1 ISEC (6AG1543-6WX00-7XE0) (All versions < V2.3), SIPLUS ET 200SP CP 1543SP-1 ISEC TX RAIL (6AG2543-6WX00-4XE0) (All versions < V2.3), SIPLUS NET CP 1242-7 V2 (6AG1242-7KX31-7XE0) (All versions < V3.4.29), SIPLUS NET CP 443-1 (6AG1443-1EX30-4XE0) (All versions < V3.3), SIPLUS NET CP 443-1 Advanced (6AG1443-1GX30-4XE0) (All versions < V3.3), SIPLUS S7-1200 CP 1243-1 (6AG1243-1BX30-2AX0) (All versions < V3.4.29), SIPLUS S7-1200 CP 1243-1 RAIL (6AG2243-1BX30-1XE0) (All versions < V3.4.29), SIPLUS TIM 1531 IRC (6AG1543-1MX00-7XE0) (All versions < V2.3.6), TIM 1531 IRC (6GK7543-1MX00-0XE0) (All versions < V2.3.6). The webserver of the affected products contains a vulnerability that may lead to a denial of service condition. An attacker may cause a denial of service situation of the webserver of the affected product.

Published: 2023-04-11 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2022-43767 is rated Moderate Risk (47.4/100): CVSS High severity, with low exploitation likelihood (EPSS 0.72%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2022-43767

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.47% 0.72% +0.25%
2 2026-04-19 0.25% 0.47% +0.22%
3 2026-04-15 — 0.25% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-43767

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]

Weakness enumeration for CVE-2022-43767

Affected software / configurations for CVE-2022-43767

Vendor Product Version Raw CPE
siemens simatic_cp_1242-7_v2_firmware — cpe:2.3:o:siemens:simatic_cp_1242-7_v2_firmware:*:*:*:*:*:*:*:*
siemens simatic_cp_1243-1_firmware — cpe:2.3:o:siemens:simatic_cp_1243-1_firmware:*:*:*:*:*:*:*:*
siemens simatic_cp_1243-1_dnp3_firmware — cpe:2.3:o:siemens:simatic_cp_1243-1_dnp3_firmware:*:*:*:*:*:*:*:*
siemens simatic_cp_1243-1_iec_firmware — cpe:2.3:o:siemens:simatic_cp_1243-1_iec_firmware:*:*:*:*:*:*:*:*
siemens simatic_cp_1243-7_lte_eu_firmware — cpe:2.3:o:siemens:simatic_cp_1243-7_lte_eu_firmware:*:*:*:*:*:*:*:*
siemens simatic_cp_1243-7_lte_us_firmware — cpe:2.3:o:siemens:simatic_cp_1243-7_lte_us_firmware:*:*:*:*:*:*:*:*
siemens simatic_cp_1243-8_irc_firmware — cpe:2.3:o:siemens:simatic_cp_1243-8_irc_firmware:*:*:*:*:*:*:*:*
siemens simatic_cp_1542sp-1_firmware — cpe:2.3:o:siemens:simatic_cp_1542sp-1_firmware:*:*:*:*:*:*:*:*
siemens simatic_cp_1542sp-1_irc_firmware — cpe:2.3:o:siemens:simatic_cp_1542sp-1_irc_firmware:*:*:*:*:*:*:*:*
siemens simatic_cp_1543sp-1_firmware — cpe:2.3:o:siemens:simatic_cp_1543sp-1_firmware:*:*:*:*:*:*:*:*
siemens simatic_cp_443-1_firmware < 3.3 cpe:2.3:o:siemens:simatic_cp_443-1_firmware:*:*:*:*:*:*:*:*
siemens simatic_cp_443-1_advanced_firmware < 3.3 cpe:2.3:o:siemens:simatic_cp_443-1_advanced_firmware:*:*:*:*:*:*:*:*
siemens simatic_ipc_diagbase_firmware — cpe:2.3:o:siemens:simatic_ipc_diagbase_firmware:*:*:*:*:*:*:*:*
siemens simatic_ipc_diagmonitor_firmware — cpe:2.3:o:siemens:simatic_ipc_diagmonitor_firmware:*:*:*:*:*:*:*:*
siemens siplus_et_200sp_cp_1542sp-1_irc_tx_rail_firmware — cpe:2.3:o:siemens:siplus_et_200sp_cp_1542sp-1_irc_tx_rail_firmware:*:*:*:*:*:*:*:*
siemens siplus_et_200sp_cp_1543sp-1_isec_firmware — cpe:2.3:o:siemens:siplus_et_200sp_cp_1543sp-1_isec_firmware:*:*:*:*:*:*:*:*
siemens siplus_et_200sp_cp_1543sp-1_isec_tx_rail_firmware — cpe:2.3:o:siemens:siplus_et_200sp_cp_1543sp-1_isec_tx_rail_firmware:*:*:*:*:*:*:*:*
siemens siplus_net_cp_1242-7_v2_firmware — cpe:2.3:o:siemens:siplus_net_cp_1242-7_v2_firmware:*:*:*:*:*:*:*:*
siemens siplus_net_cp_443-1_firmware < 3.3 cpe:2.3:o:siemens:siplus_net_cp_443-1_firmware:*:*:*:*:*:*:*:*
siemens siplus_net_cp_443-1_advanced_firmware < 3.3 cpe:2.3:o:siemens:siplus_net_cp_443-1_advanced_firmware:*:*:*:*:*:*:*:*
siemens siplus_s7-1200_cp_1243-1_firmware — cpe:2.3:o:siemens:siplus_s7-1200_cp_1243-1_firmware:*:*:*:*:*:*:*:*
siemens siplus_s7-1200_cp_1243-1_rail_firmware — cpe:2.3:o:siemens:siplus_s7-1200_cp_1243-1_rail_firmware:*:*:*:*:*:*:*:*
siemens siplus_tim_1531_irc_firmware < 2.3.6 cpe:2.3:o:siemens:siplus_tim_1531_irc_firmware:*:*:*:*:*:*:*:*
siemens tim_1531_irc_firmware < 2.3.6 cpe:2.3:o:siemens:tim_1531_irc_firmware:*:*:*:*:*:*:*:*

References for CVE-2022-43767

cvelogic Threat Intelligence