How severe is CVE-2017-8116?

CVE-2017-8116 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-8116 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-8116?

CVE-2017-8116 primarily affects Teltonika Rut900 Firmware. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-8116?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2017-8116 published?

CVE-2017-8116 was published on 2017-07-03 and last updated on 2026-06-17.

CVE-2017-8116

CVE-2017-8116 is a critical-severity vulnerability in Teltonika Rut900 Firmware with a CVSS 3.x base score of 9.8. 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-78.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 5% (90th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Teltonika Rut900 Firmware
Published: 2017-07-03
Last modified: 2026-06-17

Description

The management interface for the Teltonika RUT9XX routers (aka LuCI) with firmware 00.03.265 and earlier allows remote attackers to execute arbitrary commands with root privileges via shell metacharacters in the username parameter in a login request.

Frequently asked questions

What is CVE-2017-8116?: The management interface for the Teltonika RUT9XX routers (aka LuCI) with firmware 00.03.265 and earlier allows remote attackers to execute arbitrary commands with root privileges via shell metacharacters in the username parameter in a login request.
How severe is CVE-2017-8116?: CVE-2017-8116 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-8116 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-8116?: CVE-2017-8116 primarily affects Teltonika Rut900 Firmware. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-8116?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2017-8116 published?: CVE-2017-8116 was published on 2017-07-03 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:o:teltonika:rut900_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:teltonika:rut905_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:teltonika:rut950_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:teltonika:rut955_firmware:*:*:*:*:*:*:*:*

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CVE-2018-17532 — Critical (CVSS 9.8): Teltonika RUT9XX routers with firmware before 00.04.233 are prone to multiple unauthenticated OS command injection…
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