Answer in brief
CVE-2026-45836 records a Medium severity (CVSS 5.5) vulnerability in Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_get_sndtimeo_cb(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=8d836d71e2223b8961b21112bb4ce89ef8231682 <fd072f833147b0bc10c43a454624cb99d02f3fc7 || >=8d836d71e2223b8961b21112bb4ce89ef8231682 <6e8d1a2a677a81caa60cf0aabd4217bd585fbba1 || >=8d836d71e2223b8961b21112bb4ce89ef8231682 <e1863e7480feddb90125d0dd5a1b572972d75908 || >=8d836d71e2223b8961b21112bb4ce89ef8231682 <cf1fd517f892ded88168df878f834b625133f86d || >=8d836d71e2223b8961b21112bb4ce89ef8231682 <58dc5e3d8768e121907608e6e196a908512fb083 || >=8d836d71e2223b8961b21112bb4ce89ef8231682 <32bd343803d4ba47cc516f9d5f037f01b855d767 || >=8d836d71e2223b8961b21112bb4ce89ef8231682 <a93d66907dd4d29b65c9797a93784bf61906d6d6 || >=8d836d71e2223b8961b21112bb4ce89ef8231682 <78a88d43dab8d23aeef934ed8ce34d40e6b3d613 | fd072f833147b0bc10c43a454624cb99d02f3fc7, 6e8d1a2a677a81caa60cf0aabd4217bd585fbba1, e1863e7480feddb90125d0dd5a1b572972d75908, cf1fd517f892ded88168df878f834b625133f86d, 58dc5e3d8768e121907608e6e196a908512fb083, 32bd343803d4ba47cc516f9d5f037f01b855d767, a93d66907dd4d29b65c9797a93784bf61906d6d6, 78a88d43dab8d23aeef934ed8ce34d40e6b3d613 |
| Linux/Linuxgeneric | 3.13 | Not reported |
| Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystemgeneric | >=0 <* | * |
Published upstream
May 26, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 26, 2026
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_get_sndtimeo_cb() Add the same NULL guard already present in l2cap_sock_resume_cb() and l2cap_sock_ready_cb().
Quoted source text, attributed separately from HOL analysis.