Occurred Nov 10, 2026, 12:00:00 AM UTC

First published Nov 11, 2026, 1:35:15 AM UTC · Last updated Nov 11, 2026, 1:35:15 AM UTC

CVE-2026-111793: Openwave Messaging Limited Webtop Media Transcoder Incorrect Resource Transfer Between Spheres Vulnerability

Reported by CISA Known Exploited Vulnerabilities

The source describes a vulnerability in Openwave Messaging Limited Webtop Media Transcoder that may let an authenticated user process and convert unintended document types under the stated conditions. It directs users to apply vendor mitigations or discontinue use if mitigations are unavailable.

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Why it matters

The source calls for mitigation or discontinuing use of the product if mitigation is unavailable.

Generated scores

Scores are based on the cited reporting and use a 1–10 scale. Read the methodology.

Confidence: 6/10How certain the assessment is based on the clarity and evidence in the cited reporting.
Geographic reach: 1/10How widely the event reaches, from a local area (1) to worldwide impact (10).
Global importance: 2/10The event's broader significance, from limited importance (1) to major global importance (10).
Impact magnitude: 2/10The scale or severity of the real-world impact, from minor (1) to extreme (10).
Urgency: 5/10How time-sensitive the event is, from low urgency (1) to immediate attention needed (10).

Primary official sources

CISA Known Exploited Vulnerabilities CVE-2026-111793: Openwave Messaging Limited Webtop Media Transcoder Incorrect Resource Transfer Between Spheres Vulnerability

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