Vulnerability · 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.…

Q: Should you patch?

No confirmed exploitation is on record for CVE-2022-43767. EPSS is 0.72%. Act only if a listed version of simatic cp 443-1 firmware is installed.

Q: Which versions are affected?

Compare what you have installed with siemens/simatic cp 443-1 advanced firmware < 3.3; siemens/simatic cp 443-1 firmware < 3.3; siemens/siplus net cp 443-1 advanced firmware < 3.3; siemens/siplus net cp 443-1 firmware < 3.3. Compare the installed version with the linked vendor advisory before you change production.

Q: What should an analyst verify?

CWE-833. EPSS 0.72%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Published Apr 11, 2023 · catalog updated Oct 23, 2026 · simatic cp 443-1 firmware

Last checked Oct 24, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2022-43767. EPSS is 0.72%. Act only if a listed version of simatic cp 443-1 firmware is installed.

Gaps on this record

No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

CVE-2022-43768 · High
CVE-2022-43716 · High

Severity: High7.5
Known exploitation: Not in CISA/VulnCheck KEV
EPSS: 0.72%
Remediation: Version ranges on file
Affected products: cpe siemens/simatic cp 1242-7 v2 firmware · cpe siemens/simatic cp 1243-1 firmware · cpe siemens/simatic cp 443-1 advanced firmware · cpe siemens/simatic cp 443-1 firmware · cpe siemens/siplus net cp 443-1 advanced firmware · cpe siemens/siplus net cp 443-1 firmware

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

cpe siemens/simatic cp 1242-7 v2 firmwareversion unspecified
cpe siemens/simatic cp 1243-1 firmwareversion unspecified
cpe siemens/simatic cp 443-1 advanced firmware< 3.3
cpe siemens/simatic cp 443-1 firmware< 3.3
cpe siemens/siplus net cp 443-1 advanced firmware< 3.3
cpe siemens/siplus net cp 443-1 firmware< 3.3
cpe siemens/siplus tim 1531 irc firmware< 2.3.6
cpe siemens/tim 1531 irc firmware< 2.3.6

How to fix CVE-2022-43767

Upgrade
CVE-2022-43767 lists a fix boundary at 3.3. Compare the installed build with that boundary before you change production.
Version check
Affected < 3.3
Advisory
Open the cve_org record and follow its fix.
Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2022-43767. EPSS is 0.72%. Act only if a listed version of simatic cp 443-1 firmware is installed.

Which versions are affected?

Compare what you have installed with siemens/simatic cp 443-1 advanced firmware < 3.3; siemens/simatic cp 443-1 firmware < 3.3; siemens/siplus net cp 443-1 advanced firmware < 3.3; siemens/siplus net cp 443-1 firmware < 3.3. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-833. EPSS 0.72%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

Apr 11, 2023 · NIST NVD
Detected
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
Oct 23, 2026 · NIST NVD
Updated
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

Sources

CVE.orgVulnerability recordCVE-2022-43767
Official CVE identifier
cve.org
FIRST EPSSExploitation probabilityCVE-2022-43767
30-day exploitation probability 0.72%
first.org
NIST NVDVulnerability recordCVE-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
nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 24, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

CVE.orgOct 24, 2026
FIRST EPSSOct 24, 2026
NIST NVDOct 24, 2026

Priority score

12/100

Evidence confidence: High

Several independent sources name this vulnerability.

Confirmed exploitation0/30
EPSS probability1/20
CVSS severity11/15
Public exploit0/10
Internet exposure0/10
Product prevalence0/5
Detection0/5
Threat research0/5

Decision signals

Four separate signals — do not infer one from another.

High

CVSS severity
7.5 v3.1
Technical impact. Separate from exploitation likelihood.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS probability
0.72% · p53.55%
Estimated probability of exploitation within 30 days (FIRST).
Known exploitation
No verified KEV listing
Evidence from CISA KEV or VulnCheck KEV only — not from EPSS alone.
Patch availability
Version ranges on file
Affected version ranges suggest a fixed boundary. Verify against the vendor advisory for your release.

Weakness

CWE-833 MITRE definition

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