Stack-based buffer overflow in Milesight UR32L
Key facts
- Attack vector
- Network
- Privileges required
- High
- 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 · CNA. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.
Summary
Multiple buffer overflow vulnerabilities exist in the vtysh_ubus binary of Milesight UR32L v32.3.0.5 due to the use of an unsafe sprintf pattern. A specially crafted HTTP request can lead to arbitrary code execution. An attacker with high privileges can send HTTP requests to trigger these vulnerabilities.This buffer overflow occurs in the firewall_handler_set function with the index and to_dst variables.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- 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 |
|---|---|---|---|---|---|
| Milesight | UR32L | v32.3.0.5 | — | No fix listed | CNA |
- UR32L VendorMilesight Affected v32.3.0.5 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-25085
- 2026-10-03 Alias added: GHSA-7c56-qmq7-fgrq
References
More Milesight Ur32l Firmware vulnerabilities
- TI-2023-09701 Stack-based buffer overflow in Milesight UR32L CVSS 3.1CRITICAL 9.8
- TI-2023-23160 An information disclosure in Milesight UR5X, UR32L, UR32, UR35, UR41 before v35.3.0.7… CVSS 3.1HIGH 7.5
- TI-2023-10201 Command injection in Milesight UR32L CVSS 3.1HIGH 8.8
- TI-2023-10200 Command injection in Milesight UR32L CVSS 3.1HIGH 8.8
- TI-2023-10141 Command injection in Milesight UR32L CVSS 3.1HIGH 8.8
- TI-2023-10140 Command injection in Milesight UR32L CVSS 3.1HIGH 8.8
Sources
- CVE-2023-25085 · CVE Program
- CVE-2023-25085 · NVD
- FIRST EPSS
- GHSA-7c56-qmq7-fgrq · 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