UpHeron
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Servers and applications

CVE-2019-3943

MikroTik RouterOS versions Stable 6.43.12 and below, Long-term 6.42.12 and below, and Testing 6.44beta75 and below are vulnerable to an authenticated, remote directory traversal via the HTTP or Winbox interfaces. An authenticated, remote attack can use this vulnerability to read and write files outside of the sandbox directory (/rw/disk).

Severity
High 8.1
Published
10 Apr 2019
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
3.7% in the next 30 daysHigher than 89% of CVEs. EPSS by FIRST, 10 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
MikroTik RouterOSServers and applications · cpe:o:mikrotik:routeros
  • Version 6.44-beta75
  • Version 6.44-beta61
  • Version 6.44-beta54
  • Version 6.44-beta50
All 75 release lines
  • Every version up to 6.42.12
  • Every version up to 6.43.12
  • Version 6.41-rc31
  • Version 6.41-rc32
  • Version 6.41-rc34
  • Version 6.41-rc37
  • Version 6.41-rc38
  • Version 6.41-rc44
  • Version 6.41-rc47
  • Version 6.41-rc50
  • Version 6.41-rc52
  • Version 6.41-rc56
  • Version 6.41-rc61
  • Version 6.41-rc66
  • Version 6.42-rc2
  • Version 6.42-rc5
  • Version 6.42-rc6
  • Version 6.42-rc9
  • Version 6.42-rc11
  • Version 6.42-rc12
  • Version 6.42-rc14
  • Version 6.42-rc15
  • Version 6.42-rc18
  • Version 6.42-rc20
  • Version 6.42-rc23
  • Version 6.42-rc24
  • Version 6.42-rc27
  • Version 6.42-rc28
  • Version 6.42-rc30
  • Version 6.42-rc35
  • Version 6.42-rc37
  • Version 6.42-rc39
  • Version 6.42-rc41
  • Version 6.42-rc43
  • Version 6.42-rc46
  • Version 6.42-rc48
  • Version 6.42-rc49
  • Version 6.42-rc52
  • Version 6.42-rc56
  • Version 6.43-rc3
  • Version 6.43-rc4
  • Version 6.43-rc5
  • Version 6.43-rc6
  • Version 6.43-rc7
  • Version 6.43-rc11
  • Version 6.43-rc12
  • Version 6.43-rc14
  • Version 6.43-rc17
  • Version 6.43-rc19
  • Version 6.43-rc21
  • Version 6.43-rc23
  • Version 6.43-rc27
  • Version 6.43-rc29
  • Version 6.43-rc32
  • Version 6.43-rc34
  • Version 6.43-rc40
  • Version 6.43-rc42
  • Version 6.43-rc44
  • Version 6.43-rc45
  • Version 6.43-rc51
  • Version 6.43-rc56
  • Version 6.43-rc64
  • Version 6.43-rc66
  • Version 6.44-beta6
  • Version 6.44-beta9
  • Version 6.44-beta14
  • Version 6.44-beta17
  • Version 6.44-beta20
  • Version 6.44-beta28
  • Version 6.44-beta39
  • Version 6.44-beta40
  • Version 6.44-beta50
  • Version 6.44-beta54
  • Version 6.44-beta61
  • Version 6.44-beta75

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2019-3943
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2019-3943