5.3

CVE-2021-36093: otrs ag otrs Incorrect Regular Expression

CVSS: 5.3v3.1MediumModified
AliasesUBUNTU-CVE-2021-36093
Published 06-09-2021Last modified 16-09-2024
Open JSON

Vulnerability summary

CVE-2021-36093 is a medium (CVSS 5.3) Incorrect Regular Expression vulnerability in otrs ag otrs. EPSS estimates a 1.11% chance of exploitation in the next 30 days, higher than 65.3% of scored vulnerabilities.

Overall risk
21/100
0100
Low · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
1.11%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 06-09-2021
    PublishedVulnerability first disclosed.
  2. 16-09-2024
    Last modifiedVulnerability information updated.

Description

It's possible to create an email which can be stuck while being processed by PostMaster filters, causing DoS. This issue affects: OTRS AG ((OTRS)) Community Edition 6.0.x version 6.0.1 and later versions. OTRS AG OTRS 7.0.x version 7.0.28 and prior versions; 8.0.x version 8.0.15 and prior versions.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

1.11%

Chance of exploitation in the next 30 days

Percentile

65%

Versus all other CVEs

30-day change

0.00 pp

From 1.11% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.11%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Otrs ag2 products
Otrs1 product
  • otrs≥ 6.0.1 (No fix recorded) | ≥ 7.0.0, < 7.0.29 | ≥ 8.0.0, < 8.0.16
Ubuntu1 product
  • otrs2All versions (No fix recorded)

3 vendors · 4 products

References

3 links