CVE-2018-11462
No exploitation reported by the sources we read.
- Published2018-12-12
- WeaknessCWE-264
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
A vulnerability has been identified in SINUMERIK 808D V4.7 (All versions), SINUMERIK 808D V4.8 (All versions), SINUMERIK 828D V4.7 (All versions < V4.7 SP6 HF1), SINUMERIK 840D sl V4.7 (All versions < V4.7 SP6 HF5), SINUMERIK 840D sl V4.8 (All versions < V4.8 SP3). By sending a specially crafted authentication request to the affected systems a remote attacker could escalate his privileges to an elevated user account but not to root. The security vulnerability could be exploited by an attacker with network access to the affected systems. Successful exploitation requires no privileges and no user interaction. The vulnerability could allow an attacker to compromise confidentiality, integrity and availability of the system. At the time of advisory publication no public exploitation of this security vulnerability was known.
Timeline
dates in UTC- 2018-12-1216:29CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 18:48 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2018-11462?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2018-11462?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| — | all versions | no fix published | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| — | all versions | no fix published | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 4.7 | ≤ 4.7 | no fix published | NVD |
2 more products in the sources.
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Distribution builds and vendor advisories
Packages from OSV.dev and products from the vendors' CSAF advisories.
version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.
Vendor advisories
ICSA-18-345-02 Siemens SINUMERIK Controllers (Update A)
SINUMERIK 808D V4.7 · SINUMERIK 808D V4.8 · SINUMERIK 828D V4.7 · +2 more
Fix
- Mitigation from the vendor CISA ICSA-18-345-02 · 1 productUpdate to V4.91 and follow recommendations from section Workarounds and Mitigations. - Download: SINUMERIK software can be obtained from your local Siemens account manager.
- Mitigation from the vendor CISA ICSA-18-345-02 · 1 productUpdate to V4.7 SP6 HF1 and follow recommendations from section Workarounds and Mitigations. - Download: SINUMERIK software can be obtained from your local Siemens account manager.
- Mitigation from the vendor CISA ICSA-18-345-02 · 1 productUpdate to V4.7 SP6 HF5 and follow recommendations from section Workarounds and Mitigations. - Download: SINUMERIK software can be obtained from your local Siemens account manager.
- Mitigation from the vendor CISA ICSA-18-345-02 · 1 productUpdate to V4.8 SP3 and follow recommendations from section Workarounds and Mitigations. - Download: SINUMERIK software can be obtained from your local Siemens account manager.
- Mitigation from the vendor CISA ICSA-18-345-02 · 5 productsSiemens has identified the following specific workarounds and mitigations thatcustomers can apply to reduce the risk:firewall on port X130privilege approach Check and restore default settings (4842/tcp and 5900/tcp blocked) for
- Mitigation from the vendor CISA ICSA-18-345-02 · 5 productsSiemens has identified the following specific workarounds and mitigations thatcustomers can apply to reduce the risk:firewall on port X130privilege approach Restrict system access to authorized personnel and follow a least
Advisories and patches
- cert-portal.siemens.comVendor Advisory
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
- NVDCVSS 3.09.8read 2026-10-23
- NVDCVSS 2.07.5read 2026-10-23
- CNAweakness (CWE)CWE-264read 2026-10-23
- FIRST EPSSEPSS score3.8 %2026-10-22
Technical details
- CVSS v3 Vector
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Published
- 2018-12-12
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2018-11462?
Is CVE-2018-11462 actively exploited?
What is the CVSS score for CVE-2018-11462?
Running SINUMERIK? Hear about its next vulnerability
Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».
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Go further
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Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.