CVE-2004-0816

Status: ModifiedHigh (7.5)—Exploit

Severity7.5High · CVSS 3.1

Exploitation probability12 %higher than 96% of CVEs

Active exploitationNonot in the CISA catalog

Public exploitAvailablePublished on Exploit-DB

Integer underflow in the firewall logging rules for iptables in Linux before 2.6.8 allows remote attackers to cause a denial of service (application crash) via a malformed IP packet.

CVSS

Base score: 7.5
Version: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 12 %
Percentile among all scored CVEs: 96
Score date: 10/20/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Public exploits

Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.

Published on Exploit-DB · Linux Kernel 2.6.x - IPTables Logging Rules Integer Underflow Remote (PoC) (11/21/2004)

Affected technologies (1)

Linux — Linux Kernel

CWEs

CWE-191

References

Show 10 references

Raw JSON (NVD)

Show

{
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      "value": "Integer underflow in the firewall logging rules for iptables in Linux before 2.6.8 allows remote attackers to cause a denial of service (application crash) via a malformed IP packet."
    },
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      "lang": "es",
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  "lastModified": "2026-06-16T22:06:26.873",
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