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CVE-2008-4609
The TCP implementation in (1) Linux, (2) platforms based on BSD Unix, (3) Microsoft Windows, (4) Cisco products, and probably other…
- 7.1HighCVSS base score
- 32.4%Exploitation in 30 daysEPSS · top 1.7% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
The TCP implementation in (1) Linux, (2) platforms based on BSD Unix, (3) Microsoft Windows, (4) Cisco products, and probably other operating systems allows remote attackers to cause a denial of service (connection queue exhaustion) via multiple vectors that manipulate information in the TCP state table, as demonstrated by sockstress.
Timeline
ID reserved
By mitre
Published
- 16 years later
· 16 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High7.1 | AV:N/AC:M/Au:N/C:N/I:N/A:C |
- EPSS (exploitation in 30 days)
- 32.4% · top 1.7% of all CVEs (9 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.1.
Affected products
n/a
- affected n/a
References
15
- http://blog.robertlee.name/2008/10/conjecture-speculation.html (opens in a new tab)x_refsource_MISCx_transferred
- https://www.cert.fi/haavoittuvuudet/2008/tcp-vulnerabilities.html (opens in a new tab)x_refsource_MISCx_transferred
- HPSBMI02473 (opens in a new tab)vendor-advisoryx_refsource_HPx_transferred
- [dailydave] 20081002 TCP Resource Exhaustion DoS Attack Speculation (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- http://insecure.org/stf/tcp-dos-attack-explained.html (opens in a new tab)x_refsource_MISCx_transferred
- http://www.outpost24.com/news/news-2008-10-02.html (opens in a new tab)x_refsource_MISCx_transferred
- http://www.cpni.gov.uk/Docs/tn-03-09-security-assessment-TCP.pdf (opens in a new tab)x_refsource_MISCx_transferred
- 20090908 TCP State Manipulation Denial of Service Vulnerabilities in Multiple Cisco Products (opens in a new tab)vendor-advisoryx_refsource_CISCOx_transferred
- TA09-251A (opens in a new tab)third-party-advisoryx_refsource_CERTx_transferred
- http://www.oracle.com/technetwork/topics/security/cpujul2012-392727.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- 20081017 Cisco Response to Outpost24 TCP State Table Manipulation Denial of Service Vulnerabilities (opens in a new tab)vendor-advisoryx_refsource_CISCOx_transferred
- MS09-048 (opens in a new tab)vendor-advisoryx_refsource_MSx_transferred
- http://searchsecurity.techtarget.com.au/articles/27154-TCP-is-fundamentally-borked (opens in a new tab)x_refsource_MISCx_transferred
- oval:org.mitre.oval:def:6340 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- MDVSA-2013:150 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2008-4589 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2008-4609)Record last updated .