Openwave Messaging Limited Webtop Media Transcoder Incorrect Resource Transfer Between Spheres Vulnerability
Openwave Messaging Limited Webtop Media Transcoder contains an incorrect resource transfer between spheres vulnerability that may allow an authenticated user to process and convert unintended document types if bypassing the Webmail experience.
CISA required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating
Read at NIST National Vulnerability Database (CVE API 2.0)
- Vendor
- Openwave Messaging Limited
- Product
- Webtop Media Transcoder
- CVSS
- 4.3
- EPSS
- 0.003 (p20)
- CISA KEV
- added 10 Nov 2026, due 24 Nov 2026 (14d)
- Exploitation
- observed in the wild
- Fix
- available
- Weakness
- CWE-669
Why it ranks 60 (Critical)
- CISA KEV listed, remediation due 2026-11-24
- CVSS 4.3 medium
- Covered by 3 independent sources
- Fix available
- Recency: items published within 24 hours gain 15, within 72 hours 6, within 7 days 2.
Links
- NIST National Vulnerability Database (CVE API 2.0) (nvd.nist.gov)
- Vendor advisory (github.com)
- CVE-2026-111793 on this site · NVD · CVE.org · Vulnpedia · KEV
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