Back
CVE-2026-45834Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_state_change_cb()
- 5.5MediumCVSS base score
- 0.13%Exploitation in 30 daysEPSS · top 98% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_state_change_cb() Add the same NULL guard already present in l2cap_sock_resume_cb() and l2cap_sock_ready_cb().
Timeline
ID reserved
By Linux
- 13 days later
· 13 days later
Published
- 5 months later
· 5 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.13% · top 98% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected 89bc500e41fc5b48e0573e6b0d927fc97b8951dc – < 1b1c0da227bf63479bac9982fc8d12df9aaea0fb
- affected 89bc500e41fc5b48e0573e6b0d927fc97b8951dc – < 85426e97dc72f2088ba6d27e74cd58c3fbd43e31
- affected 89bc500e41fc5b48e0573e6b0d927fc97b8951dc – < 0c17c8832562b2aac288e89cefd0f46074f54bcb
- affected 89bc500e41fc5b48e0573e6b0d927fc97b8951dc – < 5105f3e6b2df619c635b5f6a49fac131a36c7952
- affected 89bc500e41fc5b48e0573e6b0d927fc97b8951dc – < c88c185ae0a1067823661b220aeea613df2c127b
- affected 89bc500e41fc5b48e0573e6b0d927fc97b8951dc – < 1810e42ff6716f320c7269d5850eca48b07b7427
- affected 89bc500e41fc5b48e0573e6b0d927fc97b8951dc – < a2dcf1a61d056aef15b63c6eae9441344d624389
- affected 89bc500e41fc5b48e0573e6b0d927fc97b8951dc – < 2ff1a41a912de8517b4482e946dd951b7d80edbf
- affected 3.1
- unaffected < 3.1
- unaffected 5.10.258 – ≤ 5.10.*
- unaffected 5.15.209 – ≤ 5.15.*
- unaffected 6.1.175 – ≤ 6.1.*
- unaffected 6.6.140 – ≤ 6.6.*
- unaffected 6.12.88 – ≤ 6.12.*
- unaffected 6.18.30 – ≤ 6.18.*
- unaffected 7.0.7 – ≤ 7.0.*
- unaffected 7.1 – ≤ *
References
References9
- https://git.kernel.org/stable/c/1b1c0da227bf63479bac9982fc8d12df9aaea0fb (opens in a new tab)
- https://git.kernel.org/stable/c/85426e97dc72f2088ba6d27e74cd58c3fbd43e31 (opens in a new tab)
- https://git.kernel.org/stable/c/0c17c8832562b2aac288e89cefd0f46074f54bcb (opens in a new tab)
- https://git.kernel.org/stable/c/5105f3e6b2df619c635b5f6a49fac131a36c7952 (opens in a new tab)
- https://git.kernel.org/stable/c/c88c185ae0a1067823661b220aeea613df2c127b (opens in a new tab)
- https://git.kernel.org/stable/c/1810e42ff6716f320c7269d5850eca48b07b7427 (opens in a new tab)
- https://git.kernel.org/stable/c/a2dcf1a61d056aef15b63c6eae9441344d624389 (opens in a new tab)
- https://git.kernel.org/stable/c/2ff1a41a912de8517b4482e946dd951b7d80edbf (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-31856 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-45834)Record last updated .