Microsoft · tty: vcc: hold port lock when clearing tty pointer in vcc_cleanup
Affects MicrosoftSource GCVE Database
Not known to be exploited · fixed in 821050631750e982007c0856c119346edba51cae : patch Microsoft soon.
Data as of 28 Oct 2026, 08:59 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
- Patch
- Available – fixed in 821050631750e982007c0856c119346edba51cae, 57753441ef84bee3bf0e9ee1e3778d119c44aa32, 88f6ecb058801e9ce7b9aabc966530118d7cd53c +2
Exploitation evidence
Disclosed: evidence found.
CVE published 18 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in– |
Description
CVE-2026-98754 is a vulnerability in Microsoft products related to the tty component, specifically involving the vcc_cleanup function where the port lock is held when clearing the tty pointer. The advisory provides no further technical details or impact information. No CVSS score or exploit information is available.