CVE-2015-9256
CVE-2015-9256 is a medium-severity vulnerability in Datto Alto 3 Firmware with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-200.
Key facts
- Severity: Medium (CVSS 3.x base score 5.3)
- CVSS v2: 5.0
- EPSS exploit prediction: 1% (60th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-200
- Affected product: Datto Alto 3 Firmware
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2015-9256?
- 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.
- How severe is CVE-2015-9256?
- CVE-2015-9256 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
- Is CVE-2015-9256 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2015-9256?
- CVE-2015-9256 primarily affects Datto Alto 3 Firmware. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2015-9256?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2015-9256 published?
- CVE-2015-9256 was published on 2018-02-20 and last updated on 2026-06-17.
References
Affected products (8)
- cpe:2.3:o:datto:alto_3_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:datto:alto_2_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:datto:alto_xl_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:datto:siris_3_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:datto:siris_2_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:datto:siris_3_x_all-flash_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:datto:siris_virtual_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:datto:alto_imaged_firmware:-:*:*:*:*:*:*:*
More vulnerabilities in Datto Alto 3 Firmware
- CVE-2015-9254 — Critical (CVSS 9.8): Datto ALTO and SIRIS devices have a default VNC password.
- CVE-2015-2081 — Critical (CVSS 9.8): Datto ALTO and SIRIS devices allow Remote Code Execution via unauthenticated requests to PHP scripts.
- CVE-2015-9255 — Medium (CVSS 5.3): Datto ALTO and SIRIS devices allow remote attackers to obtain sensitive information about data, software versions,…
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