UpHeron
All vulnerabilities

Servers and applications

CVE-2004-1653

The default configuration for OpenSSH enables AllowTcpForwarding, which could allow remote authenticated users to perform a port bounce, when configured with an anonymous access program such as AnonCVS.

Severity
Medium 6.4
Published
31 Aug 2004
Last changed
16 Jun 2026
Added to UpHeron
21 Oct 2026
Exploit chance
11% in the next 30 daysHigher than 96% of CVEs. EPSS by FIRST, 12 Nov 2026
Attack
Over the network · No login needed
Attacker can
Read some data · Change some data
CVSS vector
AV:N/AC:L/Au:N/C:P/I:P/A:N
Sources
NVD

Affected software

SoftwareAffected versions
OpenSSHServers and applications · cpe:a:openbsd:openssh
  • Every version up to 3.9

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2004-1653
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2004-1653