Answer in brief
CVE-2026-53150 records a Medium severity (CVSS 5.5) vulnerability in thunderbolt: Reject zero-length property entries in validator. 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.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=cdae7c07e3e3509eaabc18c1640a55dc5b99c179 <581c2053ab4dbe27e83c9e62deb4c73aa8dc0c3a || >=cdae7c07e3e3509eaabc18c1640a55dc5b99c179 <35d6c9252a152e756768a26dbf216b9dd9dd8e92 || >=cdae7c07e3e3509eaabc18c1640a55dc5b99c179 <99d9dbad1463afb510d42c9714f846361d1b726d || >=cdae7c07e3e3509eaabc18c1640a55dc5b99c179 <5f56bc6bddffe8710ba0ba8844023b5a44ca90e4 || >=cdae7c07e3e3509eaabc18c1640a55dc5b99c179 <ca11e7da4fba4b394f69e16448f4463c44c84de6 || >=cdae7c07e3e3509eaabc18c1640a55dc5b99c179 <2e0ddac549ebd713eb9f4a15b6496e3440a17d8b || >=cdae7c07e3e3509eaabc18c1640a55dc5b99c179 <3b6e68cb97f725385010264a873e14a3921b6b8a || >=cdae7c07e3e3509eaabc18c1640a55dc5b99c179 <cff8eb65d1eafe7793e54b4d0cf6bf831644630b | 581c2053ab4dbe27e83c9e62deb4c73aa8dc0c3a, 35d6c9252a152e756768a26dbf216b9dd9dd8e92, 99d9dbad1463afb510d42c9714f846361d1b726d, 5f56bc6bddffe8710ba0ba8844023b5a44ca90e4, ca11e7da4fba4b394f69e16448f4463c44c84de6, 2e0ddac549ebd713eb9f4a15b6496e3440a17d8b, 3b6e68cb97f725385010264a873e14a3921b6b8a, cff8eb65d1eafe7793e54b4d0cf6bf831644630b |
| 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: Reject zero-length property entries in validator tb_property_entry_valid() accepts entries with length == 0 for DIRECTORY, DATA, and TEXT types. A zero-length TEXT entry passes validation but causes an underflow in the null-termination logic: property->value.text[property->length * 4 - 1] = '\0'; When property->length is 0 this writes to offset -1 relative to the allocation. Reject zero-length entries early in the validator since they have no valid representation in the XDomain property protocol.
Quoted source text, attributed separately from HOL analysis.