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TI-2021-09597 Aliases CVE-2021-28485GHSA-r68w-x838-c65m

In Ericsson Mobile Switching Center Server (MSC-S) before IS 3.1 CP22, the SIS web…

Priority LOW 21CWE-22Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-22 and the CVSS impact.

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00662 51st percentileScored 2026-11-08
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:ericsson:mobile_switching_center_server_bc_18a_firmware:*:*:*:*:*:*:*:*is_3.1 to before is_3.1_cp22VulnerableEricsson
cpe:2.3:h:ericsson:mobile_switching_center_server_bc_18a:-:*:*:*:*:*:*:*not specified by NVDRunning onEricsson
  • cpe:2.3:o:ericsson:mobile_switching_center_server_bc_18a_firmware:*:*:*:*:*:*:*:* Versions is_3.1 to before is_3.1_cp22 Vulnerable ·Ericsson
  • cpe:2.3:h:ericsson:mobile_switching_center_server_bc_18a:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Ericsson

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-28485
  2. 2026-10-03 Alias added: GHSA-r68w-x838-c65m
  3. 2026-10-06 EPSS moved to the 50th–90th percentile

References

Advisory 2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences