CVE-2024-0840
highpriority · track · 0EPSS 0.009 · 59 %ileEUEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (1)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (5)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/cveshow/CVE-2024-0840/cnnvd
- https://firmware.grandstream.com/Release_Note_UCM6xxx_1.0.20.52.pdfPatchcnnvd
- https://vulncheck.com/advisories/grand-stream-param-injectioncnnvd
- https://vulncheck.com/advisories/grand-stream-param-injectionenisa_euvd
- https://vulncheck.com/advisories/grand-stream-param-injectionnvd
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