CVE-2019-6568: siemens simatic_cp_1604_firmware Out-of-bounds Read
Vulnerability summary
CVE-2019-6568 is a high (CVSS 7.5) Out-of-bounds Read vulnerability in siemens simatic_cp_1604_firmware. EPSS estimates a 1.40% chance of exploitation in the next 30 days, higher than 72.1% of scored vulnerabilities.
Timeline
- 17-04-2019PublishedVulnerability first disclosed.
- 03-06-2026Last modifiedVulnerability information updated.
Description
The webserver of the affected devices contains a vulnerability that may lead to a denial of service condition. An attacker may cause a denial of service situation which leads to a restart of the webserver of the affected device. The security vulnerability could be exploited by an attacker with network access to the affected systems. Successful exploitation requires no system privileges and no user interaction. An attacker could use the vulnerability to compromise availability of the device.
CVSS metrics
3 scores · 2 sources · 2 versions- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
1.40%
Chance of exploitation in the next 30 days
Percentile
72%
Versus all other CVEs
30-day change
0.00 pp
From 1.40% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Siemens126 products
- simatic_cp_1604_firmwareAll versions (No fix recorded)
- simatic_cp_1616_firmwareAll versions (No fix recorded)
- simatic_cp_343-1_advanced_firmwareAll versions (No fix recorded)
- simatic_cp_443-1_firmwareAll versions < V3.3
- simatic_cp_443-1_advanced_firmwareAll versions < V3.3
1 vendor · 126 products
References
2 links- cert-portal.siemens.com/productcert/pdf/ssa-480230.pdfVendor Advisory
- cert-portal.siemens.com/productcert/pdf/ssa-530931.pdfVendor Advisory