CVE-2008-4609

highpriority · attend · 49EPSS 0.321 · 98 %ileexploit · PoCEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

32.1% (98th) EPSS

CVSS 7.1 · high

Is it mine?

2,036 products

Check your exposure

Who says so?

2 sources

enisa_euvd · nvd

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

7.1

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.4–7.1

v2.07.1highAV:N/AC:M/Au:N/C:N/I:N/A:Cprimary · NVD / NIST USexploitability 8.6 · impact 6.9

v2.06.4mediumAV:N/AC:M/Au:N/C:N/I:N/A:C/E:POCsecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-16USprimary

exploits (1)

Public proof-of-concept and weaponised exploit code.

mrclki/sockstressSockstress (CVE-2008-4609) DDoS implementation written in GoPoC · poc_in_github

affected products (2,036)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
bsd bsdall versionsnvdUScpe:2.3:o:bsd:bsd:*:*:*:*:*:*:*:*
bsd bsd= 4.1nvdUScpe:2.3:o:bsd:bsd:*:*:*:*:*:*:*:*
bsd bsd= 4.2nvdUScpe:2.3:o:bsd:bsd:*:*:*:*:*:*:*:*
bsd bsd= 4.3nvdUScpe:2.3:o:bsd:bsd:*:*:*:*:*:*:*:*
bsd bsd= 4.4nvdUScpe:2.3:o:bsd:bsd:*:*:*:*:*:*:*:*
bsdi bsd osall versionsnvdUScpe:2.3:o:bsdi:bsd_os:*:*:*:*:*:*:*:*
bsdi bsd os= 1.1nvdUScpe:2.3:o:bsdi:bsd_os:*:*:*:*:*:*:*:*
bsdi bsd os= 2.0nvdUScpe:2.3:o:bsdi:bsd_os:*:*:*:*:*:*:*:*
bsdi bsd os= 2.0.1nvdUScpe:2.3:o:bsdi:bsd_os:*:*:*:*:*:*:*:*
bsdi bsd os= 2.1nvdUScpe:2.3:o:bsdi:bsd_os:*:*:*:*:*:*:*:*
bsdi bsd os= 3.0nvdUScpe:2.3:o:bsdi:bsd_os:*:*:*:*:*:*:*:*
bsdi bsd os= 3.1nvdUScpe:2.3:o:bsdi:bsd_os:*:*:*:*:*:*:*:*
bsdi bsd os= 3.2nvdUScpe:2.3:o:bsdi:bsd_os:*:*:*:*:*:*:*:*
bsdi bsd os= 4.0nvdUScpe:2.3:o:bsdi:bsd_os:*:*:*:*:*:*:*:*
bsdi bsd os= 4.0.1nvdUScpe:2.3:o:bsdi:bsd_os:*:*:*:*:*:*:*:*
bsdi bsd os= 4.1nvdUScpe:2.3:o:bsdi:bsd_os:*:*:*:*:*:*:*:*
bsdi bsd os= 4.2nvdUScpe:2.3:o:bsdi:bsd_os:*:*:*:*:*:*:*:*
cisco catalyst blade switch 3020 firmware< 12.2\(50\)nvdUScpe:2.3:o:cisco:catalyst_blade_switch_3020_firmware:*:*:*:*:*:*:*:*
cisco catalyst blade switch 3120 firmware< 12.2\(50\)nvdUScpe:2.3:o:cisco:catalyst_blade_switch_3120_firmware:*:*:*:*:*:*:*:*

showing 20 of 2,036

also known as (2)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

enisa_euvd nvd NVD CVE.org MITRE

published 2008-10-20modified 2026-06-16

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+341 more

references (30)

External citations — patches, advisories, analysis.

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