How severe is CVE-2018-19878?

CVE-2018-19878 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2018-19878 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-19878?

CVE-2018-19878 affects Teltonika Rut950 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-19878?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-19878 published?

CVE-2018-19878 was published on 2019-06-19 and last updated on 2026-06-17.

CVE-2018-19878

CVE-2018-19878 is a medium-severity vulnerability in Teltonika Rut950 Firmware with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-416.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 6.8
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-416
Affected product: Teltonika Rut950 Firmware
Published: 2019-06-19
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2018-19878?: 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.
How severe is CVE-2018-19878?: CVE-2018-19878 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2018-19878 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-19878?: CVE-2018-19878 affects Teltonika Rut950 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-19878?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-19878 published?: CVE-2018-19878 was published on 2019-06-19 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:teltonika:rut950_firmware:r_31.04.89:*:*:*:*:*:*:*

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