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No exploitation reportedFix available

CVE-2018-13807

No exploitation reported by the sources we read.

  • Published2018-09-12
  • Fixed in4.0.0
  • WeaknessCWE-20

Am I 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 SCALANCE X300 (All versions < V4.0.0), SCALANCE X408 (All versions < V4.0.0), SCALANCE X414 (All versions). The web interface on port 443/tcp could allow an attacker to cause a Denial-of-Service condition by sending specially crafted packets to the web server. The device will automatically reboot, impacting network availability for other devices. An attacker must have network access to port 443/tcp to exploit the vulnerability. Neither valid credentials nor interaction by a legitimate user is required to exploit the vulnerability. There is no confidentiality or integrity impact, only availability is temporarily impacted. This vulnerability could be triggered by publicly available tools.

Timeline

dates in UTC
  1. 2018-09-1213:29CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2018-13807?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2018-13807?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Siemens scalance x300 firmwareversion to verify
BranchAffectedFixed in
4.0< 4.0.04.0.0
Siemens scalance x408 firmwareversion to verify
BranchAffectedFixed in
4.0< 4.0.04.0.0
Siemens scalance x414 firmwareversion to verify
BranchAffectedFixed in
—all versionsno fix published

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-18-254-05 CISA3 known affected

    Siemens SCALANCE X Switches

    Siemens SCALANCE X-300 switch family (incl. SIPLUS NET variants): All versions < V4.0.0 · Siemens SCALANCE X408: All versions < V4.0.0 · Siemens SCALANCE X414: All versions

Full record on NVD

Fix

  1. Update Siemens scalance x300 firmware to 4.0.0
  2. Vendor fix CISA ICSA-18-254-05 · 2 productsUpdate to V4.1.2 https://support.industry.siemens.com/cs/us/en/view/109753720
  3. Mitigation from the vendor CISA ICSA-18-254-05 · 3 productsProtect network access to the integrated web server on port 443/tcp with appropriate mechanisms: Restrict network access to port 443/tcp to trusted IP addresses, and avoid running vulnerability scanning tools from trusted IP addresses on affected devices.

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

  • NVDCVSS 3.08.6read 2026-10-23
  • NVDCVSS 2.07.8read 2026-10-23
  • CNAweakness (CWE)CWE-20read 2026-10-23
  • NVDweakness (CWE)CWE-20read 2026-10-23
  • FIRST EPSSEPSS score4.2 %2026-10-22

Technical details

CVSS v3 Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Published
2018-09-12
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2018-13807?

A vulnerability has been identified in SCALANCE X300 (All versions < V4.0.0), SCALANCE X408 (All versions < V4.0.0), SCALANCE X414 (All versions). The web interface on port 443/tcp could allow an attacker to cause a Denial-of-Service condition by sending specially crafted packets to the web server. The device will automatically reboot, impacting network availability for other devices. An attacker must have network access to port 443/tcp to exploit the vulnerability. Neither valid credentials nor interaction by a legitimate user is required to exploit the vulnerability. There is no confidentiality or integrity impact, only availability is temporarily impacted. This vulnerability could be triggered by publicly available tools.

Is CVE-2018-13807 actively exploited?

Active exploitation of CVE-2018-13807 has not been confirmed. Its EPSS score was 4.2% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-13807?

CVE-2018-13807 has a CVSS v3 base score of 8.6 (HIGH severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.

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