Strix
26.1K

CVE-2025-68816

UnknownEPSS 0.17%

Last modified

CVE-2025-68816 is a vulnerability of currently unknown severity. 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.). EPSS estimates a 0.17% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability
0.17%

6.9th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 70dd6fdb8987b14f7b6105f6be0617299e459398, < 95624b731c490a4b849844269193a233d6d556a0; >= 70dd6fdb8987b14f7b6105f6be0617299e459398, < 768d559f466cdd72849110a7ecd76a21d52dcfe3; >= 70dd6fdb8987b14f7b6105f6be0617299e459398, < 38ac688b52ef26a88f8bc4fe26d24fdd0ff91e5d; >= 70dd6fdb8987b14f7b6105f6be0617299e459398, < 8ac688c0e430dab19f6a9b70df94b1f635612c1a; >= 70dd6fdb8987b14f7b6105f6be0617299e459398, < 45bd283b1d69e2c97cddcb9956f0e0261fc4efd7; >= 70dd6fdb8987b14f7b6105f6be0617299e459398, < 8c35c2448086870509ede43947845be0833251f0; >= 70dd6fdb8987b14f7b6105f6be0617299e459398, < b35966042d20b14e2d83330049f77deec5229749
LinuxLinux4.19

References

Timeline

Published
Last Modified
Status
Deferred

Frequently Asked Questions

What is CVE-2025-68816?
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.
How severe is CVE-2025-68816?
Severity scoring for CVE-2025-68816 is pending analysis. The EPSS model estimates a 0.17% probability of exploitation in the next 30 days.
How do I fix CVE-2025-68816?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

Related CVEs from 2025

View all 2025CVEs →

Are you affected by CVE-2025-68816?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST