CVE-2009-4536 Security feature bypass in n/a

What is CVE-2009-4536?

CVE-2009-4536 is a high-severity vulnerability in Debian Debian Linux, published on 12 Jan 2010. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

drivers/net/e1000/e1000_main.c in the e1000 driver in the Linux kernel 2.6.32.3 and earlier handles Ethernet frames that exceed the MTU by processing certain trailing payload data as if it were a complete frame, which allows remote attackers to bypass packet filters via a large packet with a crafted payload. NOTE: this vulnerability exists because of an incorrect fix for CVE-2009-1385.

Weakness: CWE-189

Which versions are affected by CVE-2009-4536?

It affects 2 products.

Products include Debian Debian Linux, Linux kernel.

How do I fix CVE-2009-4536?

Apply the vendor's patch.

Is CVE-2009-4536 being exploited?

There is no known exploitation of CVE-2009-4536 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-f8hp-66pw-jmc7.