Medium severity · published Mar 10, 2022
CVE-2021-28488
Ericsson Network Manager (ENM) before 21.2 has incorrect access-control behavior (that only affects the level of access available to persons who were already granted a highly…
6.5
CVSS
1.1%
EPSS
No
On KEV
Description
Ericsson Network Manager (ENM) before 21.2 has incorrect access-control behavior (that only affects the level of access available to persons who were already granted a highly privileged role). Users in the same AMOS authorization group can retrieve managed-network data that was not set to be accessible to the entire group (i.e., was only set to be accessible to a subset of that group).
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.1% · higher than 66% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NM
Network Manager · Ericsson
before 21.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-28488
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-28488
Vendor Advisory
https://www.ericsson.com
Vendor Advisory
https://www.ericsson.com/en/about-us/enterprise-security/psirt
Third Party Advisory
https://www.gruppotim.it/it/footer/red-team.html
More from Network Manager
9.8
CVE-2025-27258
Ericsson Network Manager: escalation of privilege vulnerability
8.8
CVE-2023-39909
Ericsson Network Manager before 23.2 mishandles Access Control and thus unauthenticated low-privilege users can access the NCM application
7.1
CVE-2024-25007
Ericsson Network Manager (ENM), versions prior to 23.1, contains a vulnerability in the export function of application log where Improper Neutralization of Formula Elements in a…
6.8
CVE-2022-46408
Ericsson Network Manager (ENM), versions prior to 22.1, contains a vulnerability in the application Network Connectivity Manager (NCM) where improper Neutralization of Formula…
5.4
CVE-2025-27259
Ericsson Network Manager: improper neutralization of user controlled input