CVE-2001-0851
Linux kernel 2.0, 2.2 and 2.4 with syncookies enabled allows remote attackers to bypass firewall...
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.
- Severity
- 5.0 MediumCVSS 2.0, NVD
- Exploit chance
- 3.00%EPSS, 87th percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
- No fix listedNo source names one
Description
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
Affected products
What each source reports
NVD Score used
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 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Updated
- 2026-11-02
CVE ListNo 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-2001-0834No 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-fc7mNo 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
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
References
linux-mandrake.com/en/security/2001/MDKSA-2001-082.php3
exchange.xforce.ibmcloud.com/vulnerabilities/7461
novell.com/linux/security/advisories/2001_039_kernel2_txt.html
redhat.com/support/errata/RHSA-2001-142.html
linuxsecurity.com/advisories/other_advisory-1683.html
caldera.com/support/security/advisories/CSSA-2001-038.0.txt
distro.conectiva.com.br/atualizacoes?id=a&anuncio=000432
nvd.nist.gov/vuln/detail/CVE-2001-0851
github.com/advisories/GHSA-gfc3-m7qc-fc7m