CVE-2026-111793: Openwave Webtop Media Transcoder does not enforce administrator-defined file type restrictions to
Affects Openwave Messaging Webtop Media TranscoderSource GCVE Database
Exploited in the wild · KEV due 24 Nov 2026 : upgrade to 1.1.22.0 now.
Data as of 10 Nov 2026, 23:24 UTC
Thin evidence
One scorer or none| CNA (mitre) | CVSS 3.1 | 4.3 |
|---|
- KEV deadline
- US federal agencies must patch by this date; a sensible deadline for everyone else. Other KEV due dates
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 19% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 1.1.22.0
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:LExploitation evidence
t = 0 is the CVE’s publication on cve.org
Disclosed: evidence found.
CVE published 16 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: evidence found.
Listed in CISA KEV 25 days after disclosure
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
Timeline
CVE ID reserved
by MITRE Corporation
, 1 minute before disclosure
CVE published
on cve.org
, t = 0
In Threat Radar
record ingested
, 21 minutes after disclosure
Added to CISA KEV (opens in a new tab)
exploitation confirmed
, 25 days after disclosure
KEV remediation due
US federal deadline
, 39 days after disclosure
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CISA KEV (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 10 Nov 2026.
What to do
Upgrade Openwave Messaging Webtop Media Transcoder to 1.1.22.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Openwave Messaging (Ireland) LimitedWebtop Media Transcoder | Affected
| Fixed in
|
Description
Openwave Webtop Media Transcoder does not enforce administrator-defined file type restrictions to restrict the file-types to be converted. This may allow an authenticated user to process and convert unintended document types if bypassing the Webmail experience.
References
- nvd.nist.gov/vuln/detail/CVE-2026-111793 (opens in a new tab)
- github.com/GISOpenwave/security-advisories-public/blob/main/CAN-2026-2032674.md (opens in a new tab)
- jvn.jp/en/vu/JVNVU93403064 (opens in a new tab)
- openwave.ai (opens in a new tab)
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-111793 (opens in a new tab)