CVE-2026-98751VulnerabilityPublished 20 Oct 2026Updated 7 Nov 2026

Microsoft · tty: abort break signalling on hangup

Affects MicrosoftSource GCVE Database

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Authoritative record:CVE-2026-98751· Medium

Not known to be exploited · fixed in c8ccd3b2013daaf77b98f8a6724fcf4d2c5c52d6 : update Microsoft when convenient.

Data as of 7 Nov 2026, 13:02 UTC

Severity

Medium

Rated by Threat Radar · CVSS not yet scored by NVD

Thin evidence

One scorer or none

Patch: Available – fixed in c8ccd3b2013daaf77b98f8a6724fcf4d2c5c52d6, 8224d25534580d07925607bbd617daf9c8de26c3, 845a2737e0f5ffe5ca8d38de556012b0c9472cdd +5

Exploitation evidence

Disclosed: evidence found.
CVE published 18 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: 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 7 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

microsoft-security-response-ce

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ f34d7a5b7010b82fe97da95496b9971435530062, < c8ccd3b2013daaf77b98f8a6724fcf4d2c5c52d6	Fixed in c8ccd3b2013daaf77b98f8a6724fcf4d2c5c52d6
LinuxLinux	Affected ≥ f34d7a5b7010b82fe97da95496b9971435530062, < 8224d25534580d07925607bbd617daf9c8de26c3	Fixed in 8224d25534580d07925607bbd617daf9c8de26c3
LinuxLinux	Affected ≥ f34d7a5b7010b82fe97da95496b9971435530062, < 845a2737e0f5ffe5ca8d38de556012b0c9472cdd	Fixed in 845a2737e0f5ffe5ca8d38de556012b0c9472cdd
LinuxLinux	Affected ≥ f34d7a5b7010b82fe97da95496b9971435530062, < 94af6cd832e9b4ce39a8fb59144a8f09ab56fd35	Fixed in 94af6cd832e9b4ce39a8fb59144a8f09ab56fd35
LinuxLinux	Affected ≥ f34d7a5b7010b82fe97da95496b9971435530062, < 70fa2bec352d9f949b882af3c380b916e4a29a43	Fixed in 70fa2bec352d9f949b882af3c380b916e4a29a43
LinuxLinux	Affected ≥ f34d7a5b7010b82fe97da95496b9971435530062, < 8a0f0f9ef41cb80de4d5da4ae146df3075463f6b	Fixed in 8a0f0f9ef41cb80de4d5da4ae146df3075463f6b

Description

CVE-2026-98751 is a published vulnerability related to the tty subsystem's abort break signalling on hangup. The affected Microsoft product versions are 3.0 and 4.0. No CVSS score or detailed impact information is provided, and there are no known exploits in the wild.

References

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