SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityDeferred

CVE-2021-22501

Improper Restriction of XML External Entity Reference vulnerability in OpenText™ Operations Bridge Manager allows Input Data Manipulation.

MEDIUM 5.3EPSS 0.50%

Does this matter?

Lower severity and a low EPSS score (0.50%). Track it; it rarely justifies an emergency change on its own.

Description

Improper Restriction of XML External Entity Reference vulnerability in OpenText™ Operations Bridge Manager allows Input Data Manipulation.  The vulnerability could be exploited to confidential information This issue affects Operations Bridge Manager: 2017.05, 2017.11, 2018.05, 2018.11, 2019.05, 2019.11, 2020.05, 2020.10.

CVSS 4.0
5.3 MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
EPSS
0.50% probability · 42th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-611
Source
security@opentext.com
EPSS trend
0%3%5%26 October 2026: 0.50%26 October 202626 October 2026

EPSS 0.5% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.