Auth bypass in Citrix Xenmobile Server

CVE-2020-8253

Improper authentication in Citrix XenMobile Server 10.12 before RP2, Citrix XenMobile Server 10.11 before RP4, Citrix XenMobile Server 10.10 before RP6 and Citrix XenMobile Server before 10.9 RP5 leads to the ability to access sensitive files.

Vulnerability class: Broken Authentication

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.017 (76.4th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 76.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2020-8253: held from 0.017 to 0.017.

EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000

Affected products

  • Citrix Xenmobile Server — versions 10.9.0, 10.10.0, 10.11.0
  • Citrix Xenmobile Server — versions Citrix XenMobile Server 10.12 RP2, Citrix XenMobile Server 10.11 RP4, Citrix XenMobile Server 10.10 RP6 and Citrix XenMobile Server 10.9 RP5

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2020-8253?
CVE-2020-8253 is a high-severity vulnerability in Citrix Xenmobile Server, classified under Improper Authentication. CVSS score: 7.5/10. Published 2020-09-18.
How severe is CVE-2020-8253?
High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2020-8253 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.