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TI-2020-12689 Aliases CVE-2020-16134GHSA-w7f8-p623-gp6f

An issue was discovered on Swisscom Internet Box 2, Internet Box Standard, Internet Box…

Priority LOW 36Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

An issue was discovered on Swisscom Internet Box 2, Internet Box Standard, Internet Box Plus prior to 10.04.38, Internet Box 3 prior to 11.01.20, and Internet Box light prior to 08.06.06. Given the (user-configurable) credentials for the local Web interface or physical access to a device's plus or reset button, an attacker can create a user with elevated privileges on the Sysbus-API. This can then be used to modify local or remote SSH access, thus allowing a login session as the superuser.

Why it matters now

EPSS 0.00815 57th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

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

CPE configurations NVD · 10

CPEVersionsRoleVendor
cpe:2.3:o:swisscom:internet-box_2_firmware:*:*:*:*:*:*:*:*before 10.04.38VulnerableSwisscom
cpe:2.3:h:swisscom:internet-box_2:-:*:*:*:*:*:*:*not specified by NVDRunning onSwisscom
cpe:2.3:o:swisscom:internet-box_standard_firmware:*:*:*:*:*:*:*:*before 10.04.38VulnerableSwisscom
cpe:2.3:h:swisscom:internet-box_standard:-:*:*:*:*:*:*:*not specified by NVDRunning onSwisscom
cpe:2.3:o:swisscom:internet-box_plus_firmware:*:*:*:*:*:*:*:*before 10.04.38VulnerableSwisscom
cpe:2.3:h:swisscom:internet-box_plus:-:*:*:*:*:*:*:*not specified by NVDRunning onSwisscom
cpe:2.3:o:swisscom:internet-box_3_firmware:*:*:*:*:*:*:*:*before 11.01.20VulnerableSwisscom
cpe:2.3:h:swisscom:internet-box_3:-:*:*:*:*:*:*:*not specified by NVDRunning onSwisscom
cpe:2.3:o:swisscom:internet-box_light_firmware:*:*:*:*:*:*:*:*before 08.06.06VulnerableSwisscom
cpe:2.3:h:swisscom:internet-box_light:-:*:*:*:*:*:*:*not specified by NVDRunning onSwisscom
  • cpe:2.3:o:swisscom:internet-box_2_firmware:*:*:*:*:*:*:*:* Versions before 10.04.38 Vulnerable ·Swisscom
  • cpe:2.3:h:swisscom:internet-box_2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Swisscom
  • cpe:2.3:o:swisscom:internet-box_standard_firmware:*:*:*:*:*:*:*:* Versions before 10.04.38 Vulnerable ·Swisscom
  • cpe:2.3:h:swisscom:internet-box_standard:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Swisscom
  • cpe:2.3:o:swisscom:internet-box_plus_firmware:*:*:*:*:*:*:*:* Versions before 10.04.38 Vulnerable ·Swisscom
  • cpe:2.3:h:swisscom:internet-box_plus:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Swisscom
  • cpe:2.3:o:swisscom:internet-box_3_firmware:*:*:*:*:*:*:*:* Versions before 11.01.20 Vulnerable ·Swisscom
  • cpe:2.3:h:swisscom:internet-box_3:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Swisscom
  • cpe:2.3:o:swisscom:internet-box_light_firmware:*:*:*:*:*:*:*:* Versions before 08.06.06 Vulnerable ·Swisscom
  • cpe:2.3:h:swisscom:internet-box_light:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Swisscom

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-16134
  2. 2026-10-03 Alias added: GHSA-w7f8-p623-gp6f

References

Advisory 2

  • TI-2018-11891 A stack-based buffer overflow in the LAN UPnP service running on UDP port 1900 of… CVSS 3.0HIGH 7.5

Sources

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