Datto ALTO and SIRIS devices allow remote attackers to obtain sensitive information via…
Priority LOW 26CWE-200Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- 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 3.0 · NVD. Fix status from CNA. Impact type from CWE-200.
Summary
Datto ALTO and SIRIS devices allow remote attackers to obtain sensitive information via access to device/VM restore mount points, because they do not have ACLs by default.
Why it matters now
EPSS 0.01035 64th 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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 16
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:datto:alto_3_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Datto |
| cpe:2.3:h:datto:alto_3:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Datto |
| cpe:2.3:o:datto:alto_2_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Datto |
| cpe:2.3:h:datto:alto_2:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Datto |
| cpe:2.3:o:datto:alto_xl_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Datto |
| cpe:2.3:h:datto:alto_xl:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Datto |
| cpe:2.3:o:datto:siris_3_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Datto |
| cpe:2.3:h:datto:siris_3:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Datto |
| cpe:2.3:o:datto:siris_2_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Datto |
| cpe:2.3:h:datto:siris_2:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Datto |
- cpe:2.3:o:datto:alto_3_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Datto
- cpe:2.3:h:datto:alto_3:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Datto
- cpe:2.3:o:datto:alto_2_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Datto
- cpe:2.3:h:datto:alto_2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Datto
- cpe:2.3:o:datto:alto_xl_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Datto
- cpe:2.3:h:datto:alto_xl:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Datto
- cpe:2.3:o:datto:siris_3_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Datto
- cpe:2.3:h:datto:siris_3:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Datto
- cpe:2.3:o:datto:siris_2_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Datto
- cpe:2.3:h:datto:siris_2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Datto
Show 6 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:datto:siris_3_x_all-flash_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Datto |
| cpe:2.3:h:datto:siris_3_x_all-flash:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Datto |
| cpe:2.3:o:datto:siris_virtual_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Datto |
| cpe:2.3:h:datto:siris_virtual:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Datto |
| cpe:2.3:o:datto:alto_imaged_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Datto |
| cpe:2.3:h:datto:alto_imaged:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Datto |
- cpe:2.3:o:datto:siris_3_x_all-flash_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Datto
- cpe:2.3:h:datto:siris_3_x_all-flash:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Datto
- cpe:2.3:o:datto:siris_virtual_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Datto
- cpe:2.3:h:datto:siris_virtual:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Datto
- cpe:2.3:o:datto:alto_imaged_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Datto
- cpe:2.3:h:datto:alto_imaged:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Datto
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2015-9256
- 2026-10-03 Alias added: GHSA-c7v9-w3w7-8rcm
References
More Datto Alto 2 Firmware vulnerabilities
- TI-2015-01868 Datto ALTO and SIRIS devices allow Remote Code Execution via unauthenticated requests to PHP scripts. CVSS 3.0CRITICAL 9.8
- TI-2015-07633 Datto ALTO and SIRIS devices have a default VNC password. CVSS 3.0CRITICAL 9.8
- TI-2015-07634 Datto ALTO and SIRIS devices allow remote attackers to obtain sensitive information about… CVSS 3.0MEDIUM 5.3
Sources
- CVE-2015-9256 · CVE Program
- CVE-2015-9256 · NVD
- FIRST EPSS
- GHSA-c7v9-w3w7-8rcm · 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