CVE-2017-16563
Cross-Site Request Forgery (CSRF) in the Basic Settings screen on Vonage (Grandstream) HT802 devices allows attackers to modify settings, related to cgi-bin/update.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.44%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Cross-Site Request Forgery (CSRF) in the Basic Settings screen on Vonage (Grandstream) HT802 devices allows attackers to modify settings, related to cgi-bin/update.
- CVSS 3.0
- 8.0 HIGHCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 0.44% probability · 38th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-352
- Affected
- grandstream/ht802 firmware
- Source
- cve@mitre.org
EPSS 0.4% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://distributedcompute.com/2017/11/04/vonage-ht802-multiple-vulnerabilities/Exploit, Third Party Advisory
- https://distributedcompute.com/2017/11/04/vonage-ht802-multiple-vulnerabilities/Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.