CVE-2026-16455 Teltonika Networks CVE debrief

Who should care

Defenders responsible for Teltonika Networks RUTOS and TSWOS devices should assess exposure and prioritize patching to prevent privilege escalation. They should verify affected versions in their inventory and assess exposure to prevent privilege escalation. Defenders should also implement compensating controls for privilege escalation.

Why it matters

This vulnerability allows for privilege escalation in Teltonika Networks RUTOS and TSWOS devices, which can lead to administrative level access. Defenders should prioritize verifying affected versions in their inventory and assess exposure.

• Verify affected versions in inventory to assess exposure
• Prioritize patching to prevent privilege escalation
• Implement compensating controls for privilege escalation

Technical summary

The vulnerability exists due to unsafe calls to an execl function in Teltonika Networks RUTOS devices running versions 7.07.1 through 7.24.1 and TSWOS devices running versions 1.03 through 1.10, allowing a lower privileged user to escalate privileges to administrative level. This issue has a CVSS score of 6.9 and is classified as MEDIUM severity. The vulnerability allows for privilege escalation, which can lead to administrative level access. Defenders should prioritize verifying affected versions in their inventory and assess exposure to prevent privilege escalation.

Defensive priority

Defenders should prioritize verifying the affected versions in their inventory and assess exposure, as this vulnerability allows for privilege escalation.

Recommended defensive actions

• Verify affected versions in inventory
• Assess exposure and prioritize patching
• Implement compensating controls for privilege escalation
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.

Evidence notes

The CVE record and NVD vulnerability detail page provide information on the vulnerability, including its description, CVSS score, and affected versions. The vulnerability exists due to unsafe calls to an execl function in Teltonika Networks RUTOS devices running versions 7.07.1 through 7.24.1 and TSWOS devices running versions 1.03 through 1.10. Defenders should verify affected versions in their inventory and assess exposure to prevent privilege escalation. The CVE record was published on 2026-08-13T11:17:38.340Z and has not been The

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.