CVE-2021-31156
Allied Telesis AT-S115 1.2.0 devices before 1.00.024 with Boot Loader 1.00.006 allow Directory...
Allied Telesis AT-S115 1.2.0 devices before 1.00.024 with Boot Loader 1.00.006 allow Directory Traversal to achieve partial access to data.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Allied Telesis AT-S115 1.2.0 devices before 1.00.024 with Boot Loader 1.00.006 allow Directory Traversal to achieve partial access to data.
- Record
CVE-2021-31156- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-22
- Updated
- 2026-11-02
EUVDEUVD-2021-18070
Allied Telesis AT-S115 1.2.0 devices before 1.00.024 with Boot Loader 1.00.006 allow Directory Traversal to achieve partial access to data.
- Record
EUVD-2021-18070- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-w8qj-646m-h2rw
Allied Telesis AT-S115 1.2.0 devices before 1.00.024 with Boot Loader 1.00.006 allow Directory...
Allied Telesis AT-S115 1.2.0 devices before 1.00.024 with Boot Loader 1.00.006 allow Directory Traversal to achieve partial access to data.
- Record
GHSA-w8qj-646m-h2rw- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-22
- Updated
- 2026-11-02
NVD
Allied Telesis AT-S115 1.2.0 devices before 1.00.024 with Boot Loader 1.00.006 allow Directory Traversal to achieve partial access to data.
- Record
CVE-2021-31156- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-22
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-31156 is a high vulnerability (CVSS 7.5) in Allied Telesis At S115 1.2.0, published March 28, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.95%, the 61st percentile. No source names a fixed version.