Vulnerability details
CVE-2026-53148
Linux LinuxSiemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
thunderbolt: Clamp XDomain response data copy to allocation size
CVSS 3.1
7.0High
Official description
In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Clamp XDomain response data copy to allocation size tb_xdp_properties_request() derives the per-packet copy length from the response header without checking that it fits in the previously allocated data buffer. A malicious peer can set its length field larger than the declared data_length, causing memcpy to write past the kcalloc allocation. Clamp the per-packet copy length so that the cumulative offset never exceeds data_len.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.0High | 3.1 | CVEProject cvelistV5 (CNA) (redhat-SADP) | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Linux | Linux | 4.15 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | cdae7c07e3e3509eaabc18c1640a55dc5b99c179 ≤ v < 6021d39ccd979713b39b980286020d8f9a45efd1 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | cdae7c07e3e3509eaabc18c1640a55dc5b99c179 ≤ v < 89ae04365e01d5ae4aae83044a8bbd2a9aaf8d0d | CVEProject cvelistV5 (CNA) |
| Linux | Linux | cdae7c07e3e3509eaabc18c1640a55dc5b99c179 ≤ v < 5db10c8ad8c09f72c847dfeef3d876098257f505 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | cdae7c07e3e3509eaabc18c1640a55dc5b99c179 ≤ v < 05a43157676c243c248d1c6d9dcecbe6eba2f35d | CVEProject cvelistV5 (CNA) |
| Linux | Linux | cdae7c07e3e3509eaabc18c1640a55dc5b99c179 ≤ v < fcbd0cdab92838854a5818be7ed8a097164ef6d5 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | cdae7c07e3e3509eaabc18c1640a55dc5b99c179 ≤ v < 906035d5c3784570191d259cbf9a0ac1617852b5 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | cdae7c07e3e3509eaabc18c1640a55dc5b99c179 ≤ v < 322e93448d908434ae5545660fcbe8f5a7a8e141 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | cdae7c07e3e3509eaabc18c1640a55dc5b99c179 ≤ v < 0b334279a82d79fb4723bd4f614305de1ab69caa | CVEProject cvelistV5 (CNA) |
| Siemens | SIMATIC S7-1500 TM MFP - GNU/Linux subsystem | All | CVEProject cvelistV5 (CNA) |
References and advisories
12- https://git.kernel.org/stable/c/0b334279a82d79fb4723bd4f614305de1ab69caa
- https://git.kernel.org/stable/c/6021d39ccd979713b39b980286020d8f9a45efd1
- https://git.kernel.org/stable/c/89ae04365e01d5ae4aae83044a8bbd2a9aaf8d0d
- https://git.kernel.org/stable/c/5db10c8ad8c09f72c847dfeef3d876098257f505
- https://git.kernel.org/stable/c/05a43157676c243c248d1c6d9dcecbe6eba2f35d
- https://git.kernel.org/stable/c/fcbd0cdab92838854a5818be7ed8a097164ef6d5
- https://git.kernel.org/stable/c/906035d5c3784570191d259cbf9a0ac1617852b5
- https://git.kernel.org/stable/c/322e93448d908434ae5545660fcbe8f5a7a8e141
- https://access.redhat.com/security/cve/CVE-2026-53148 vdb-entryx_refsource_REDHAT
- https://bugzilla.redhat.com/show_bug.cgi?id=2492756 issue-trackingx_refsource_REDHAT
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53148.json x_sadp-csaf-vex
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html
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Details
- Published
- 2026-06-25
- Last updated
- 2026-11-06
- State
- Published
- Assigner (CNA)
- Linux
Exploit prediction (EPSS)
0.13%
Probability of exploitation in 30 days
2.9%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-787Out-of-bounds Write