A vulnerability in lack of validation of user-supplied parameters pass to XML-RPC calls on SonicWall Global Management System (GMS) virtual…

Published 8 y ago 2018-08-03 · modified 4 mo ago 2026-06-17 · JSON

CVSS

9.8

v3.1 · CNA

CISA KEV

not known exploited

EPSS

4.5%

percentile 92%

Public exploits

none known

A vulnerability in lack of validation of user-supplied parameters pass to XML-RPC calls on SonicWall Global Management System (GMS) virtual appliance's, allow remote user to execute arbitrary code. This vulnerability affected GMS version 8.1 and earlier.

CISA SSVC assessment

Exploitation: Proof of concept public
Automatable: yes
Technical impact: total
Assessed: 18 mo ago 2025-04-23

Exploit prediction (EPSS)

4.50% probability of exploitation in the next 30 days, higher than 92% of all scored CVEs.

CVSS scores

Assigned by	Version	Score	Vector
CISA ADP	3.1	9.8	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`
CNA	3.1	9.8	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`
NVD	3.0	9.8	`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`
NVD	2.0	7.5	`AV:N/AC:L/Au:N/C:P/I:P/A:P`

Affected products

SonicWall Global Management System (GMS)

Classification

Weakness

CWE-77 Improper Neutralization of Special Elements used in a Command
CWE-20 Improper Input Validation

References

twitter.com /ddouhine/status/1019251292202586112 · x_refsource_MISC, x_transferred
github.com /rapid7/metasploit-framework/pull/10305 · x_refsource_MISC, x_transferred
psirt.global.sonicwall.com /vuln-detail/SNWLID-2018-0007 · x_refsource_CONFIRM, x_transferred

Sources

CVE List: CVE-2018-9866
NVD: CVE-2018-9866

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.

Summary