UpHeron
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Servers and applications

CVE-2001-1459

OpenSSH 2.9 and earlier does not initiate a Pluggable Authentication Module (PAM) session if commands are executed with no pty, which allows local users to bypass resource limits (rlimits) set in pam.d.

Severity
High 7.5
Published
19 Jun 2001
Last changed
16 Jun 2026
Added to UpHeron
21 Oct 2026
Exploit chance
2.2% in the next 30 daysHigher than 82% of CVEs. EPSS by FIRST, 12 Nov 2026
Attack
Over the network · No login needed
Attacker can
Read some data · Change some data · Slow it down
CVSS vector
AV:N/AC:L/Au:N/C:P/I:P/A:P
Sources
NVD

Affected software

SoftwareAffected versions
OpenSSHServers and applications · cpe:a:openbsd:openssh
  • Version 2.9
  • Version 2.5.2
  • Version 2.5.1
  • Version 2.5
All 8 release lines
  • Version 2.1
  • Version 2.1.1
  • Version 2.2
  • Version 2.3
  • Version 2.5
  • Version 2.5.1
  • Version 2.5.2
  • Version 2.9

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2001-1459
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2001-1459