What is CVE-2020-5761?

CVE-2020-5761 is a high-severity vulnerability in Grandstream Ht801, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 7.5/10. Published 2020-07-29.

How severe is CVE-2020-5761?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Grandstream Ht801

CVE-2020-5761

Grandstream HT800 series firmware version 1.0.17.5 and below is vulnerable to CPU exhaustion due to an infinite loop in the TR-069 service. Unauthenticated remote attackers can trigger this case by sending a one character TCP message to the TR-069 service.

Published 2020-07-29 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.041 (90.4th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 90.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.041 · newest: 0.041 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-835 — Loop with Unreachable Exit Condition (Infinite Loop)

References

www.tenable.com/security/research/tra-2020-43 (Exploit, Third Party Advisory)
www.tenable.com/security/research/tra-2020-47 (VDB Entry, Third Party Advisory)

Frequently asked questions

What is CVE-2020-5761?: CVE-2020-5761 is a high-severity vulnerability in Grandstream Ht801, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 7.5/10. Published 2020-07-29.
How severe is CVE-2020-5761?: High severity. CVSS v3 base score is 7.5 out of 10.