UpHeron
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Servers and applications

CVE-2011-1137

Integer overflow in the mod_sftp (aka SFTP) module in ProFTPD 1.3.3d and earlier allows remote attackers to cause a denial of service (memory consumption leading to OOM kill) via a malformed SSH message.

Severity
Medium 5.0
Published
11 Mar 2011
Last changed
16 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
28% in the next 30 daysHigher than 98% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
CWE-189
Attack
Over the network · No login needed
Attacker can
Slow it down
CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:P
Sources
NVD

Affected software

SoftwareAffected versions
ProFTPDServers and applications · cpe:a:proftpd:proftpd
  • Version 1.3.3
  • Version 1.3.3-rc4
  • Version 1.3.3-rc3
  • Version 1.3.3-rc2
All 65 release lines
  • Every version up to 1.3.3
  • Version 1.2.0-pre9
  • Version 1.2.0-pre10
  • Version 1.2.0-rc1
  • Version 1.2.0-rc2
  • Version 1.2.0-rc3
  • Version 1.2.0
  • Version 1.2.1
  • Version 1.2.2-rc1
  • Version 1.2.2-rc2
  • Version 1.2.2-rc3
  • Version 1.2.2
  • Version 1.2.3
  • Version 1.2.4
  • Version 1.2.5-rc1
  • Version 1.2.5-rc2
  • Version 1.2.5-rc3
  • Version 1.2.5
  • Version 1.2.6-rc1
  • Version 1.2.6-rc2
  • Version 1.2.6
  • Version 1.2.7-rc1
  • Version 1.2.7-rc2
  • Version 1.2.7-rc3
  • Version 1.2.7
  • Version 1.2.8-rc1
  • Version 1.2.8-rc2
  • Version 1.2.8
  • Version 1.2.9-rc1
  • Version 1.2.9-rc2
  • Version 1.2.9-rc3
  • Version 1.2.9
  • Version 1.2.10-rc1
  • Version 1.2.10-rc2
  • Version 1.2.10-rc3
  • Version 1.2.10
  • Version 1.3.0-a
  • Version 1.3.0-rc1
  • Version 1.3.0-rc2
  • Version 1.3.0-rc3
  • Version 1.3.0-rc4
  • Version 1.3.0-rc5
  • Version 1.3.0
  • Version 1.3.1-rc1
  • Version 1.3.1-rc2
  • Version 1.3.1-rc3
  • Version 1.3.1
  • Version 1.3.2-a
  • Version 1.3.2-b
  • Version 1.3.2-c
  • Version 1.3.2-rc1
  • Version 1.3.2-rc2
  • Version 1.3.2-rc3
  • Version 1.3.2-rc4
  • Version 1.3.2
  • Version 1.3.2-d
  • Version 1.3.2-e
  • Version 1.3.3-a
  • Version 1.3.3-b
  • Version 1.3.3-c
  • Version 1.3.3-rc1
  • Version 1.3.3-rc2
  • Version 1.3.3-rc3
  • Version 1.3.3-rc4
  • Version 1.3.3

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2011-1137
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2011-1137