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PatchSiren cyber security CVE debrief

CVE-2026-27841 Raw CVE debrief

CVE-2026-27841 is a high-severity CSRF issue in the SenseLive X3050 V1.523 web management interface. The advisory says the application does not validate request origin or use CSRF tokens, so a malicious external webpage could cause a logged-in user’s browser to submit unauthorized configuration changes. In practical terms, this is an integrity-focused risk for device administration and can also affect availability if attacker-driven settings changes disrupt operation.

Vendor
Raw
Product
SenseLive X3050 V1.523
CVSS
HIGH 8.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-04-21
Original CVE updated
2026-04-21
Advisory published
2026-04-21
Advisory updated
2026-04-21

Who should care

Operators, integrators, and administrators responsible for SenseLive X3050 devices, especially where the web management interface is reachable from untrusted networks or used by staff who browse the web while authenticated to the device.

Technical summary

The source advisory describes a missing CSRF defense in the X3050 web management interface: no server-side origin validation and no CSRF tokens. The supplied CVSS 3.1 vector is AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H, scored 8.1 (High). The issue maps to CWE-352 and requires user interaction, but no privileges beyond the victim’s authenticated browser session are indicated in the advisory.

Defensive priority

High. Prioritize if the management interface is exposed beyond a tightly controlled admin network, or if administrators may access it while browsing untrusted sites. Even though user interaction is required, the impact includes unauthorized state changes to the device.

Recommended defensive actions

  • Restrict access to the X3050 web management interface to trusted admin networks or a VPN only.
  • Use separate, dedicated admin browsing profiles or workstations for device administration.
  • Do not leave administrative sessions open longer than necessary; re-authenticate when practical.
  • Monitor configuration and access logs for unexpected state changes or suspicious admin activity.
  • Follow CISA ICS recommended practices and defense-in-depth guidance for segmentation and access control.
  • Contact SenseLive for product-specific mitigation or update guidance, as referenced in the advisory.

Evidence notes

This debrief is based on the CISA CSAF advisory ICSA-26-111-12, published 2026-04-21, which identifies CVE-2026-27841 in SenseLive X3050 V1.523. The advisory text states that state-changing requests can be triggered without proper CSRF protections because the application lacks request-origin validation and CSRF tokens. The source also includes the CVSS 3.1 vector AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H, score 8.1, and notes that SenseLive did not respond to CISA’s coordination requests.

Official resources

CISA published ICSA-26-111-12 on 2026-04-21 and states that SenseLive did not respond to coordination requests. The source provides contact guidance for affected users but does not include a fixed software update or patch identifier.