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VulnerabilityPublished

CVE-2026-69109: Siemens License Server (SLS) (All · CWE-35

Source GCVE Database

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Authoritative record:CVE-2026-69109· High 7.5

Not known to be exploited · CVSS 7.5 High : upgrade to 5.3 soon.

Data as of 8 Nov 2026, 23:24 UTC

CVSS 3.1 base score
7.5High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.6% chance of exploitation in 30 days – higher than 50% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 11 Aug 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 9 Nov 2026.

What to do

Upgrade Siemens License Server (SLS) to 5.3.

Affected software

ProductAffectedFixed in
SiemensSiemens License Server (SLS)Affected
  • <5.3
Fixed in
  • 5.3

AI-suggested

If you cannot patch yet, restrict network access to the Siemens License Server and monitor for suspicious activity related to file access attempts. Avoid exposing the service to untrusted networks.

Description

Siemens License Server (SLS) versions prior to 5.3 contain a path traversal vulnerability due to insufficient sanitization of user input. This flaw allows remote attackers to access arbitrary files on the system. The vulnerability has a high severity score of 7.5 and does not require user interaction or privileges to exploit.

References

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