Answer in brief
CVE-2025-68816 records a Unknown severity vulnerability in net/mlx5: fw_tracer, Validate format string parameters. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
Answer in brief
CVE-2025-68816 records a Unknown severity vulnerability in net/mlx5: fw_tracer, Validate format string parameters. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. 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 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=70dd6fdb8987b14f7b6105f6be0617299e459398 <95624b731c490a4b849844269193a233d6d556a0 || >=70dd6fdb8987b14f7b6105f6be0617299e459398 <768d559f466cdd72849110a7ecd76a21d52dcfe3 || >=70dd6fdb8987b14f7b6105f6be0617299e459398 <38ac688b52ef26a88f8bc4fe26d24fdd0ff91e5d || >=70dd6fdb8987b14f7b6105f6be0617299e459398 <8ac688c0e430dab19f6a9b70df94b1f635612c1a || >=70dd6fdb8987b14f7b6105f6be0617299e459398 <45bd283b1d69e2c97cddcb9956f0e0261fc4efd7 || >=70dd6fdb8987b14f7b6105f6be0617299e459398 <8c35c2448086870509ede43947845be0833251f0 || >=70dd6fdb8987b14f7b6105f6be0617299e459398 <b35966042d20b14e2d83330049f77deec5229749 | 95624b731c490a4b849844269193a233d6d556a0, 768d559f466cdd72849110a7ecd76a21d52dcfe3, 38ac688b52ef26a88f8bc4fe26d24fdd0ff91e5d, 8ac688c0e430dab19f6a9b70df94b1f635612c1a, 45bd283b1d69e2c97cddcb9956f0e0261fc4efd7, 8c35c2448086870509ede43947845be0833251f0, b35966042d20b14e2d83330049f77deec5229749 |
| Linux/Linuxgeneric | 4.19 | Not reported |
| Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIPLUS S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
Published upstream
Jan 13, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 14, 2026
In the Linux kernel, the following vulnerability has been resolved: net/mlx5: fw_tracer, Validate format string parameters Add validation for format string parameters in the firmware tracer to prevent potential security vulnerabilities and crashes from malformed format strings received from firmware. The firmware tracer receives format strings from the device firmware and uses them to format trace messages. Without proper validation, bad firmware could provide format strings with invalid format specifiers (e.g., %s, %p, %n) that could lead to crashes, or other undefined behavior. Add mlx5_tracer_validate_params() to validate that all format specifiers in trace strings are limited to safe integer/hex formats (%x, %d, %i, %u, %llx, %lx, etc.). Reject strings containing other format types that could be used to access arbitrary memory or cause crashes. Invalid format strings are added to the trace output for visibility with "BAD_FORMAT: " prefix.
Quoted source text, attributed separately from HOL analysis.
A CVSS score is not reported in the current record. 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 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=70dd6fdb8987b14f7b6105f6be0617299e459398 <95624b731c490a4b849844269193a233d6d556a0 || >=70dd6fdb8987b14f7b6105f6be0617299e459398 <768d559f466cdd72849110a7ecd76a21d52dcfe3 || >=70dd6fdb8987b14f7b6105f6be0617299e459398 <38ac688b52ef26a88f8bc4fe26d24fdd0ff91e5d || >=70dd6fdb8987b14f7b6105f6be0617299e459398 <8ac688c0e430dab19f6a9b70df94b1f635612c1a || >=70dd6fdb8987b14f7b6105f6be0617299e459398 <45bd283b1d69e2c97cddcb9956f0e0261fc4efd7 || >=70dd6fdb8987b14f7b6105f6be0617299e459398 <8c35c2448086870509ede43947845be0833251f0 || >=70dd6fdb8987b14f7b6105f6be0617299e459398 <b35966042d20b14e2d83330049f77deec5229749 | 95624b731c490a4b849844269193a233d6d556a0, 768d559f466cdd72849110a7ecd76a21d52dcfe3, 38ac688b52ef26a88f8bc4fe26d24fdd0ff91e5d, 8ac688c0e430dab19f6a9b70df94b1f635612c1a, 45bd283b1d69e2c97cddcb9956f0e0261fc4efd7, 8c35c2448086870509ede43947845be0833251f0, b35966042d20b14e2d83330049f77deec5229749 |
| Linux/Linuxgeneric | 4.19 | Not reported |
| Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIPLUS S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
Published upstream
Jan 13, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 14, 2026
In the Linux kernel, the following vulnerability has been resolved: net/mlx5: fw_tracer, Validate format string parameters Add validation for format string parameters in the firmware tracer to prevent potential security vulnerabilities and crashes from malformed format strings received from firmware. The firmware tracer receives format strings from the device firmware and uses them to format trace messages. Without proper validation, bad firmware could provide format strings with invalid format specifiers (e.g., %s, %p, %n) that could lead to crashes, or other undefined behavior. Add mlx5_tracer_validate_params() to validate that all format specifiers in trace strings are limited to safe integer/hex formats (%x, %d, %i, %u, %llx, %lx, etc.). Reject strings containing other format types that could be used to access arbitrary memory or cause crashes. Invalid format strings are added to the trace output for visibility with "BAD_FORMAT: " prefix.
Quoted source text, attributed separately from HOL analysis.