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CVE-2001-0851

Linux kernel 2.0, 2.2 and 2.4 with syncookies enabled allows remote attackers to bypass firewall...

5.0 Medium

Linux kernel 2.0, 2.2 and 2.4 with syncookies enabled allows remote attackers to bypass firewall rules by brute force guessing the cookie.

Exploit likelihood

3.00%Up 1.7 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 5.0

Linux kernel 2.0, 2.2 and 2.4 with syncookies enabled allows remote attackers to bypass firewall rules by brute force guessing the cookie.

Record
CVE-2001-0851
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:P/I:N/A:N
Updated
2026-11-02
CVE List No score

Linux kernel 2.0, 2.2 and 2.4 with syncookies enabled allows remote attackers to bypass firewall rules by brute force guessing the cookie.

Record
CVE-2001-0851
Updated
2026-11-02
EUVDEUVD-2001-0834 No score

Linux kernel 2.0, 2.2 and 2.4 with syncookies enabled allows remote attackers to bypass firewall rules by brute force guessing the cookie.

Record
EUVD-2001-0834
Updated
2026-11-03
GitHub AdvisoriesGHSA-gfc3-m7qc-fc7m No score

Linux kernel 2.0, 2.2 and 2.4 with syncookies enabled allows remote attackers to bypass firewall...

Linux kernel 2.0, 2.2 and 2.4 with syncookies enabled allows remote attackers to bypass firewall rules by brute force guessing the cookie.

Record
GHSA-gfc3-m7qc-fc7m
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2001-0851 is a medium vulnerability (CVSS 5.0) in Linux Kernel, published December 6, 2001. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.00%, the 87th percentile. No source names a fixed version.

References

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