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Fencer Vulns
high 7.6

CVE-2008-3323 json

setup.exe before 2.573.2.3 in Cygwin does not properly verify the authenticity of packages, which allows remote Cygwin mirror servers or ma…

published 2008-07-28 18 y ago modified 2026-06-16 4 mo ago also EUVD-2008-3311

cvss
7.6
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.6%
EPSS 2.6% chance of exploitation in 30 days, percentile 85%
public exploits
0
none known

Summary

setup.exe before 2.573.2.3 in Cygwin does not properly verify the authenticity of packages, which allows remote Cygwin mirror servers or man-in-the-middle attackers to execute arbitrary code via a package list containing the MD5 checksum of a Trojan horse package.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2008-3323 updated cvss 7.6

Cygwin installation and update process can be subverted

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.65% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 7.6 AV:N/AC:H/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.