CVE-2026-43406 - Vulnerability Analysis

Overview

Linux kernel contains an out-of-bounds read vulnerability caused by insufficient bounds checking in libceph's process_message_header(), letting attackers cause memory reads beyond intended limits, exploit requires crafted malicious message frames.

Severity & Score

Impact

Attackers can cause out-of-bounds memory reads, potentially leading to information disclosure or system instability.

Mitigation

Update to the latest Linux kernel version with the fix for libceph process_message_header bounds check.

References

• https://git.kernel.org/stable/c/035867ae6f18df0aeedb2a57a5b74091bd4e3fe8
• https://git.kernel.org/stable/c/50156622eb0888e62541d715a98584480a1bc7cb
• https://git.kernel.org/stable/c/69fb5d91bba44ecf7eb80530b85fa4fb028921d5
• https://git.kernel.org/stable/c/69fe5af33fa3806f398d21c081d73c66e5523bc2
• https://git.kernel.org/stable/c/75582aaa580c11aed4c7731cad6b068b700e7efb
• https://git.kernel.org/stable/c/76ccf21a12c5f6d6790bc32c7da82446d877b2f4
• https://git.kernel.org/stable/c/dbd857a9e1e33ea71eaf3e211877027e533770d1

Related Resources

• Vulnerability Intelligence Dashboard
• Credential Scanner