CVE-2024-0840

8.8 highEPSS 0.9%

High (8.8). EPSS 0.9% chance of exploitation in the next 30 days.

The Grandstream UCM Series IP PBX before firmware version 1.0.20.52 is affected by a parameter injection vulnerability in the HTTP interface. A remote and authenticated attacker can execute arbitrary code by sending a crafted HTTP request. Authentication may be possible using a default user and password. Affected models are the UCM6202, UCM6204, UCM6208, and UCM6510.

Severity

CVSS 3.1

8.8 high

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.9% chance of exploitation in the next 30 days; higher than 59% of CVEs (scores of 2026-10-31)
CWE: CWE-141
Published: 2024-04-29
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

References

https://vulncheck.com/advisories/grand-stream-param-injection
https://vulncheck.com/advisories/grand-stream-param-injection

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