Confused deputy in Google Android allows sensitive USSD code execution
Key facts
- Attack vector
- Local
- Privileges required
- None
- 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 · CISA ADP. Fix status from CNA.
Summary
A confused deputy flaw in multiple functions across Google Android 17 lets a local attacker trigger the execution of sensitive USSD codes. The weakness is classified as CWE-441 (Unintended Proxy or Intermediary). A local attacker with no additional execution privileges can escalate privileges without user interaction.
Written with Claude Haiku 5.5 from the sources below · 2026-11-05
Description from the CNA
In multiple functions in multiple locations, there is a possible execution of sensitive USSD codes due to a confused deputy. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
The sources list no fixed version for Google Android. Android is listed as affected from version 17 onward, and no update is named.
Written with Claude Haiku 5.5 from the sources below · 2026-11-05
Timeline
- 2026-11-02 Threatist record created from CVE-2026-55289
- 2026-11-02 CVSS score added · CISA ADP
- 2026-11-02 Weakness changed · CISA ADP
- 2026-11-02 CISA SSVC decision points changed
- 2026-11-02 Alias added: GHSA-jq92-wvp4-vv62
- 2026-11-03 CISA SSVC decision points changed
References
More Google vulnerabilities
- TI-2025-09686 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.8
- TI-2024-07390 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.6
- TI-2024-04898 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.6
- TI-2024-04600 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.6
- TI-2024-04346 Use after free in Google Chrome KEVCVSS 3.1CRITICAL 9.6
- TI-2023-05824 Integer overflow in Google Chrome KEVCVSS 3.1CRITICAL 9.6
Sources
- CVE-2026-55289 · CVE Program
- CVE-2026-55289 · NVD
- FIRST EPSS
- GHSA-jq92-wvp4-vv62 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences