l2cap_conn_del() · Bluetooth: L2CAP: Fix deadlock
Affects MicrosoftSource GCVE Database
Not known to be exploited · fixed in f7f35a4f7fd574f5889bb2e4b397e14cbb83f6da : update Microsoft when convenient.
Data as of 10 Nov 2026, 23:24 UTC
Rated by Threat Radar · No CVSS score from NVD or the CNA
Thin evidence
One scorer or none| NVD | CVSS 3.1 | 5.5 |
|---|
- EPSS
- 0.09% chance of exploitation in 30 days – higher than 0% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in f7f35a4f7fd574f5889bb2e4b397e14cbb83f6da, d008460de352e534f6721de829b093368564ec66, 6.14 +4
Exploitation evidence
Disclosed: evidence found.
CVE published 22 Apr 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 11 Nov 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in– |
Description
CVE-2026-31499 is a vulnerability in Microsoft Bluetooth L2CAP component involving a deadlock issue in the l2cap_conn_del() function. This deadlock could potentially affect the stability of the Bluetooth connection handling. The affected version explicitly identified is version 3.0. No CVSS score is provided for this vulnerability.