Answer in brief
CVE-2025-21735 records a High severity (CVSS 8.8) vulnerability in NFC: nci: Add bounds checking in nci_hci_create_pipe(). 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 8.8. 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 |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=a1b0b9415817c14d207921582f269d03f848b69f <bd249109d266f1d52548c46634a15b71656e0d44 || >=a1b0b9415817c14d207921582f269d03f848b69f <674e17c5933779a8bf5c15d596fdfcb5ccdebbc2 || >=a1b0b9415817c14d207921582f269d03f848b69f <10b3f947b609713e04022101f492d288a014ddfa || >=a1b0b9415817c14d207921582f269d03f848b69f <d5a461c315e5ff92657f84d8ba50caa5abf5c22a || >=a1b0b9415817c14d207921582f269d03f848b69f <172cdfc3a5ea20289c58fb73dadc6fd4a8784a4e || >=a1b0b9415817c14d207921582f269d03f848b69f <2ae4bade5a64d126bd18eb66bd419005c5550218 || >=a1b0b9415817c14d207921582f269d03f848b69f <59c7ed20217c0939862fbf8145bc49d5b3a13f4f || >=a1b0b9415817c14d207921582f269d03f848b69f <110b43ef05342d5a11284cc8b21582b698b4ef1c | bd249109d266f1d52548c46634a15b71656e0d44, 674e17c5933779a8bf5c15d596fdfcb5ccdebbc2, 10b3f947b609713e04022101f492d288a014ddfa, d5a461c315e5ff92657f84d8ba50caa5abf5c22a, 172cdfc3a5ea20289c58fb73dadc6fd4a8784a4e, 2ae4bade5a64d126bd18eb66bd419005c5550218, 59c7ed20217c0939862fbf8145bc49d5b3a13f4f, 110b43ef05342d5a11284cc8b21582b698b4ef1c |
| Linux/Linuxgeneric | 4.4 | Not reported |
| Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystemgeneric | >=0 <* | * |
Published upstream
Feb 27, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: NFC: nci: Add bounds checking in nci_hci_create_pipe() The "pipe" variable is a u8 which comes from the network. If it's more than 127, then it results in memory corruption in the caller, nci_hci_connect_gate().
Quoted source text, attributed separately from HOL analysis.