Vulnerability · Published Dec 7, 2025 · Assigned by VulDB

CVE-2025-14187UGREEN DH2100+ nas_svr create handler_file_backup_create buffer overflow

High 7.2

In plain English

A high-severity buffer overflow in DH2100+ from UGREEN. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 50% of all known vulnerabilities).

Severity (CVSS 3.1)7.2High

Exploit odds (30 days)0.6%top 49.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

A weakness has been identified in UGREEN DH2100+ up to 5.3.0.251125. This affects the function handler_file_backup_create of the file /v1/file/backup/create of the component nas_svr. Executing a manipulation of the argument path can lead to buffer overflow. The attack can be executed remotely. The exploit has been made available to the public and could be used for attacks. It is recommended to upgrade the affected component.

Affected products (as reported)

Vendor	Product	Versions
UGREEN	DH2100+	5.3.0.251125

Weakness: CWE-120, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C

References

VDB-334607 | UGREEN DH2100+ nas_svr create handler_file_backup_create buffer overflow vdb-entry, technical-description
VDB-334607 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
Submit #698652 | UGREEN DH2100+ NAS V4.2.0.601 Buffer Overflow third-party-advisory
https://www.notion.so/2b16cf4e528a80bbb5fdeff145f110ec exploit