CVE-2018-19878
CWE-416Published: June 19, 2019· Updated: Jun 17, 2026
Official Description
An issue was discovered on Teltonika RTU950 R_31.04.89 devices. The application allows a user to login without limitation. For every successful login request, the application saves a session. A user can re-login without logging out, causing the application to store the session in memory. Exploitation of this vulnerability will increase memory use and consume free space.
Technical Analysis
CVE-2018-19878 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A successful exploit results in availability disruption (denial of service), with a CVSS base score of 6.5.
From a weakness classification perspective (CWE-416): Use-after-free vulnerabilities involve accessing memory after it has been freed, often enabling arbitrary code execution.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
All References (4)
Quick Facts
Related CVEs (CWE-416)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2018-19878 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts