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Medium 5.5Published May 26, 2026
CVE-2026-45834Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_state_change_cb()
Updated under an hour ago ()
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It affects Linux and 2 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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().
- CVSS
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 89bc500e41fc5b48e0573e6b0d927fc97b8951dc builds before 1b1c0da227bf63479bac9982fc8d12df9aaea0fb; from 89bc500e41fc5b48e0573e6b0d927fc97b8951dc before 85426e97dc72f2088ba6d27e74cd58c3fbd43e31; 89bc500e41fc5b48e0573e6b0d927fc97b8951dc builds before 0c17c8832562b2aac288e89cefd0f46074f54bcb; from 89bc500e41fc5b48e0573e6b0d927fc97b8951dc before 5105f3e6b2df619c635b5f6a49fac131a36c7952; from 89bc500e41fc5b48e0573e6b0d927fc97b8951dc before c88c185ae0a1067823661b220aeea613df2c127b; from 89bc500e41fc5b48e0573e6b0d927fc97b8951dc before 1810e42ff6716f320c7269d5850eca48b07b7427; from 89bc500e41fc5b48e0573e6b0d927fc97b8951dc before a2dcf1a61d056aef15b63c6eae9441344d624389; 89bc500e41fc5b48e0573e6b0d927fc97b8951dc builds before 2ff1a41a912de8517b4482e946dd951b7d80edbf | CNA record |
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem siemens:simatic_s7_1500_tm_mfp_gnu_linux_subsystem (from the name) | all versions | CISA ADP |
linux linux_kernel linux:linux_kernel | from 3.1 before 5.10.258; from 5.11 before 5.15.209; from 5.16 before 6.1.175; from 6.2 before 6.6.140; from 6.7 before 6.12.88; from 6.13 before 6.18.30; from 6.19 before 7.0.7; 7.1; and 1 more ranges | NVD |
References
- https://git.kernel.org/stable/c/1b1c0da227bf63479bac9982fc8d12df9aaea0fbpatch
- https://git.kernel.org/stable/c/85426e97dc72f2088ba6d27e74cd58c3fbd43e31patch
- https://git.kernel.org/stable/c/0c17c8832562b2aac288e89cefd0f46074f54bcbpatch
- https://git.kernel.org/stable/c/5105f3e6b2df619c635b5f6a49fac131a36c7952patch
- https://git.kernel.org/stable/c/c88c185ae0a1067823661b220aeea613df2c127bpatch
- https://git.kernel.org/stable/c/1810e42ff6716f320c7269d5850eca48b07b7427patch
- https://git.kernel.org/stable/c/a2dcf1a61d056aef15b63c6eae9441344d624389patch
- https://git.kernel.org/stable/c/2ff1a41a912de8517b4482e946dd951b7d80edbfpatch
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.