How severe is CVE-2000-1226?

CVE-2000-1226 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2000-1226 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2000-1226?

CVE-2000-1226 affects Snort. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2000-1226?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2000-1226 published?

CVE-2000-1226 was published on 2000-12-31 and last updated on 2026-06-16.

CVE-2000-1226

CVE-2000-1226 is a medium-severity vulnerability in Snort with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Snort
Published: 2000-12-31
Last modified: 2026-06-16

Description

Snort 1.6, when running in straight ASCII packet logging mode or IDS mode with straight decoded ASCII packet logging selected, allows remote attackers to cause a denial of service (crash) by sending non-IP protocols that Snort does not know about, as demonstrated by an nmap protocol scan.

Frequently asked questions

What is CVE-2000-1226?: Snort 1.6, when running in straight ASCII packet logging mode or IDS mode with straight decoded ASCII packet logging selected, allows remote attackers to cause a denial of service (crash) by sending non-IP protocols that Snort does not know about, as demonstrated by an nmap protocol scan.
How severe is CVE-2000-1226?: CVE-2000-1226 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2000-1226 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2000-1226?: CVE-2000-1226 affects Snort. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2000-1226?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2000-1226 published?: CVE-2000-1226 was published on 2000-12-31 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:snort:snort:1.6:*:*:*:*:*:*:*

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