Answer in brief
CVE-2026-53149 records a High severity (CVSS 7.1) vulnerability in thunderbolt: Bound root directory content to block size. 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 7.1. 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.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=cdae7c07e3e3509eaabc18c1640a55dc5b99c179 <5c7657d38d07268124782f03519f07c22a5814fb || >=cdae7c07e3e3509eaabc18c1640a55dc5b99c179 <b212bc161d8a9937b42153723a4a3f2f74fab528 || >=cdae7c07e3e3509eaabc18c1640a55dc5b99c179 <1912be23daf4afc8d24ce916021ab68ca4c679db || >=cdae7c07e3e3509eaabc18c1640a55dc5b99c179 <4d0b1524caadb04c10a71f3f88692c63dcb39115 || >=cdae7c07e3e3509eaabc18c1640a55dc5b99c179 <0a32040a48db8cf35de48b85d6115df5623e4964 || >=cdae7c07e3e3509eaabc18c1640a55dc5b99c179 <60ba6217460792356a238299edd675d91d46bab4 || >=cdae7c07e3e3509eaabc18c1640a55dc5b99c179 <cbeb68cbaa0a6f979ef428a7f2d0268c082ba166 || >=cdae7c07e3e3509eaabc18c1640a55dc5b99c179 <65423079c7420e3dbf9a7aa345c243a3f5752e5d | 5c7657d38d07268124782f03519f07c22a5814fb, b212bc161d8a9937b42153723a4a3f2f74fab528, 1912be23daf4afc8d24ce916021ab68ca4c679db, 4d0b1524caadb04c10a71f3f88692c63dcb39115, 0a32040a48db8cf35de48b85d6115df5623e4964, 60ba6217460792356a238299edd675d91d46bab4, cbeb68cbaa0a6f979ef428a7f2d0268c082ba166, 65423079c7420e3dbf9a7aa345c243a3f5752e5d |
| Linux/Linuxgeneric | 4.15 | Not reported |
| Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystemgeneric | >=0 <* | * |
Published upstream
Jun 25, 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 25, 2026
In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Bound root directory content to block size __tb_property_parse_dir() does not check that content_offset + content_len fits within block_len for the root directory case. When rootdir->length equals or exceeds block_len - 2, the entry loop reads past the allocated property block. Add a bounds check after computing content_offset and content_len to reject directories whose content extends past the block.
Quoted source text, attributed separately from HOL analysis.