CVE-2023-50916: Kyocera Device Manager · Path Traversal
Source CVE Database V5
Not known to be exploited · CVSS 7.2 High · fixed in 3.1.1213.0 : patch affected systems soon.
Data as of 26 Oct 2026, 17:16 UTC
- EPSS
- 4.6% chance of exploitation in 30 days – higher than 91% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 3.1.1213.0
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 10 Jan 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| n/a n/a | Affected
| Fixed in
|
AI-suggested
To mitigate this vulnerability, European organizations should: 1) Immediately update Kyocera Device Manager to version 3.1.1213.0 or later where the vulnerability is patched. 2) Restrict administrative access to the Kyocera Device Manager interface to trusted personnel and secure the management network segment to prevent interception and manipulation of requests. 3) Implement network-level protections such as SMB signing and enforce the use of more secure authentication protocols (e.g., Kerberos) instead of NTLM where possible to reduce the risk of credential relay attacks. 4) Monitor network traffic for unusual SMB or NTLM authentication attempts, especially those targeting UNC paths associated with backup locations. 5) Conduct regular audits of backup configurations to detect unauthorized changes to UNC paths. 6) Employ endpoint detection and response (EDR) solutions to identify suspicious activities related to credential theft or lateral movement. 7) Educate administrators on the risks of modifying backup locations and the importance of following secure configuration practices. 8) Consider network segmentation to isolate printing infrastructure from critical systems to limit potential lateral movement.
Description
Kyocera Device Manager before 3.1.1213.0 allows NTLM credential exposure during UNC path authentication via a crafted change from a local path to a UNC path. It allows administrators to configure the backup location of the database used by the application. Attempting to change this location to a UNC path via the GUI is rejected due to the use of a \ (backslash) character, which is supposed to be disallowed in a pathname. Intercepting and modifying this request via a proxy, or sending the request directly to the application endpoint, allows UNC paths to be set for the backup location. Once such a location is set, Kyocera Device Manager attempts to confirm access and will try to authenticate to the UNC path; depending on the configuration of the environment, this may authenticate to the UNC with Windows NTLM hashes. This could allow NTLM credential relaying or cracking attacks.
References
- trustwave.com/en-us/resources/security-resources/security-advisories/ (opens in a new tab)
- kyoceradocumentsolutions.us/en/about-us/pr-and-award-certifications/press/kyocera-device-manager-cve-2023-50196-vulnerability-solution-update.html (opens in a new tab)
- trustwave.com/hubfs/Web/Library/Advisories_txt/TWSL2024-001_kyocera-v2.txt (opens in a new tab)