SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-17564

A Malformed Input String to /cgi-bin/delete_CA on Grandstream GXP16xx VoIP 1.0.4.128 phones allows attackers to delete configuration parameters and gain admin access to the device.

CRITICAL 9.8EPSS 1.58%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.58%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

A Malformed Input String to /cgi-bin/delete_CA on Grandstream GXP16xx VoIP 1.0.4.128 phones allows attackers to delete configuration parameters and gain admin access to the device.

CVSS 3.0
9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
1.58% probability · 75th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Affected
grandstream/gxp1610 firmware · grandstream/gxp1615 firmware · grandstream/gxp1620 firmware · grandstream/gxp1625 firmware · grandstream/gxp1628 firmware · grandstream/gxp1630 firmware
Source
cve@mitre.org
EPSS trend
0%3%5%27 October 2026: 1.58%27 October 202627 October 2026

EPSS 1.6% 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.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.