CVE-2020-5763: grandstream ht801_firmware Active Debug Code
CVSS: 9.0v2.0HighModified
Published 29-07-2020Last modified 04-08-2024
Vulnerability summary
CVE-2020-5763 is a high (CVSS 9.0) Active Debug Code vulnerability in grandstream ht801_firmware. EPSS estimates a 2.73% chance of exploitation in the next 30 days, higher than 85.9% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
9.0/10
010
High · v2.0 (NVD)EPSS score
2.73%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Timeline
- 29-07-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
Grandstream HT800 series firmware version 1.0.17.5 and below contain a backdoor in the SSH service. An authenticated remote attacker can obtain a root shell by correctly answering a challenge prompt.
CVSS metrics
2 scores · 1 source · 2 versionsHigh 8.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSourcesSingle source
High 9.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:S/C:C/I:C/A:CSourcesSingle source
EPSS trend
Probability
2.73%
Chance of exploitation in the next 30 days
Percentile
86%
Versus all other CVEs
30-day change
0.00 pp
From 2.73% on 21-09-2026
21-09-202621-10-2026
EPSS score2.73%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (tenable.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Grandstream6 products
- ht801_firmware≤ 1.0.17.5
- ht802_firmware≤ 1.0.17.5
- ht812_firmware≤ 1.0.17.5
- ht813_firmware≤ 1.0.17.5
- ht814_firmware≤ 1.0.17.5
1 vendor · 6 products