Heap buffer overflow in Google Android cfg2prop allows code execution
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-122 and the CVSS impact.
Summary
Google Android from 16, from 16-qpr2 and from 17 is affected. A heap buffer overflow in the cfg2prop function of btif_storage.cc causes an out-of-bounds write (CWE-122). A remote attacker with low privileges can achieve remote code execution without user interaction.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
In cfg2prop of btif_storage.cc, there is a possible out-of-bounds write due to a heap buffer overflow. This could lead to remote code execution 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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Android | 17; 16-qpr2; 16 | — | No fix listed | CNA |
- Android VendorGoogle Affected 17; 16-qpr2; 16 Fixed in — No fix listed CNA
Remediation
The sources list no fixed version for Android.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Timeline
- 2026-10-05 Threatist record created from CVE-2026-58835
- 2026-10-05 CVSS score added · CISA ADP
- 2026-10-05 Weakness changed · CISA ADP
- 2026-10-05 CISA SSVC decision points changed
- 2026-10-06 CISA SSVC decision points changed
- 2026-10-06 Alias added: GHSA-78f4-2x2w-6c6v
- 2026-10-07 Priority changed: LOW → MEDIUM
References
More Google Android vulnerabilities
- TI-2026-42236 Improper authorization in Google Android KEVCVSS 3.1HIGH 8.8
- TI-2025-30821 Use after free in Google Android KEVCVSS 3.1HIGH 8.8
- TI-2023-17777 Improper privilege management in Google Android KEVCVSS 3.1HIGH 8.8
- TI-2025-30872 Integer overflow in Google Android KEVCVSS 3.1HIGH 8.4
- TI-2024-21766 there is a possible way to bypass due to a logic error in the code. KEVCVSS 3.1HIGH 8.1
- TI-2025-30849 Missing authentication in Google Android KEVCVSS 3.1HIGH 7.8
Sources
- CVE-2026-58835 · CVE Program
- CVE-2026-58835 · NVD
- FIRST EPSS
- GHSA-78f4-2x2w-6c6v · 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