CVE-2005-3275

2.6 LOW 3% exploit odds Fix listed

What it is

The NAT code (1) ip_nat_proto_tcp.c and (2) ip_nat_proto_udp.c in Linux kernel 2.6 before 2.6.13 and 2.4 before 2.4.32-rc1 incorrectly declares a variable to be static, which allows remote attackers to cause a denial of service (memory corruption) by causing two packets for the same protocol to be NATed at the same time, which leads to memory corruption.

At a glance

Exploitability: Can be exploited over the network without logging in. Limited direct impact.
Exploit odds: 3.3% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2005-10-21 01:02 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-16 22:16 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 3.3% in the next 30 days (EPSS).
Severity: 2.6 LOW (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2005-10-21 01:02 UTC
Last modified: 2026-06-16 22:16 UTC
Exploit probability: 3.3% · EPSS, next 30 days
Record status: Modified

Affected

Linux Kernel 2.4.0
Linux Kernel 2.4.18
Linux Kernel 2.4.19
Linux Kernel 2.4.21
Linux Kernel 2.4.22
Linux Kernel 2.4.23
Linux Kernel 2.4.23_ow2
Linux Kernel 2.4.24

Attack profile CVSS 2.0 · 2.6

Attack vector: Network
Complexity: High
Authentication: None
Confidentiality: None
Integrity: None
Availability: Partial

Raw vector

AV:N/AC:H/Au:N/C:N/I:N/A:P

Is it in your code?

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Read https://cve-list.com/agent/cve/CVE-2005-3275.md and follow it. Check whether this project is affected by CVE-2005-3275. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record