CVE-2021-28485 json
In Ericsson Mobile Switching Center Server (MSC-S) before IS 3.1 CP22, the SIS web application allows relative path traversal via a specifi…
published 2023-09-14 3 y ago modified 2026-06-17 4 mo ago also EUVD-2021-15162
- cvss
- 4.3
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 51%
- public exploits
- 0
- none known
Summary
In Ericsson Mobile Switching Center Server (MSC-S) before IS 3.1 CP22, the SIS web application allows relative path traversal via a specific parameter in the https request after authentication, which allows access to files on the system that are not intended to be accessible via the web application.
Patch / fix
- ericsson mobile_switching_center_server_bc_18a_firmware is_3.1_cp22
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.66% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
Classification
- Weakness
-
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory
References
-
ericsson.com
/en/about-us/security/psirt
vendor-advisory
-
gruppotim.it
/it/footer/red-team.html
third-party-advisory
Sources
- CVE List CVE-2021-28485
- NVD CVE-2021-28485
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