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Fencer Vulns
medium 5.3

CVE-2019-18180 json

Denial of service

published 2019-12-05 6 y ago modified 2026-06-17 4 mo ago also EUVD-2019-7985

cvss
5.3
version 3.1, CNA
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

Improper Check for filenames with overly long extensions in PostMaster (sending in email) or uploading files (e.g. attaching files to mails) of ((OTRS)) Community Edition and OTRS allows an remote attacker to cause an endless loop. This issue affects: OTRS AG: ((OTRS)) Community Edition 5.0.x version 5.0.38 and prior versions; 6.0.x version 6.0.23 and prior versions. OTRS AG: OTRS 7.0.x version 7.0.12 and prior versions.

Patch / fix

  • otrs otrs 5.0.39, 6.0.24, 7.0.13
  • otrs2 Debian 11 6.0.24-1

debian advisories DEBIAN-CVE-2019-18180

  • otrs Package Hub 15 SP2 6.0.29-bp152.2.8.1
  • otrs Package Hub 15 SP2, Package Hub 15 SP1, openSUSE Leap 15.2 +1 more 6.0.29-bp152.2.5.4
  • otrs Package Hub 15 SP1, Package Hub 15, openSUSE Leap 15.1 5.0.42-bp151.3.3.1

opensuse advisories openSUSE-SU-2020:1509-1openSUSE-SU-2020:1475-1openSUSE-SU-2020:0551-1

Exploit prediction

2.57% 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
CNA 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-835 Loop with Unreachable Exit Condition

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.