PatchTheCVECVE-2019-9161: WAC on the Sangfor Sundray WLAN Controller version 3.7.4.2 and earlier has a Remote Code Execution issue allow
CVE-2019-9161 is a critical-severity flaw (CVSS 9.8) affecting sundray wan controller firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
WAC on the Sangfor Sundray WLAN Controller version 3.7.4.2 and earlier has a Remote Code Execution issue allowing remote attackers to achieve full access to the system, because shell metacharacters in the nginx_webconsole.php Cookie header can be used to read an etc/config/wac/wns_cfg_admin_detail.xml file containing the admin password. (The password for root is the WebUI admin password concatenated with a static string.)
Why this priority
- Critical severity
- EPSS top 8%: very likely to be exploited
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.8 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 4.6% (top 8%) |
| CISA exploited list | No |
| Weakness | CWE-78 |
| Published | 2019-04-18 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2019-9161?
sundray wan controller firmware: upgrade to newer than 3.7.4.2. Exact commands for each OS are on this page.
Is CVE-2019-9161 being exploited?
CVE-2019-9161 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2019-9161 affect?
CVE-2019-9161 affects sundray wan controller firmware. Severity is critical (CVSS 9.8). WAC on the Sangfor Sundray WLAN Controller version 3.7.4.2 and earlier has a Remote Code Execution issue allowing remote attackers to achieve full access to the system, because shell metacharacters in the nginx_webconsole.php Cookie header
How urgent is CVE-2019-9161?
Priority 62/100. Critical severity; EPSS top 8%: very likely to be exploited; Remotely exploitable, no login, no user action
Software pages
nginx vulnerabilities · PHP vulnerabilities
Related CVEs
- CVE-2019-9160 CRITICAL 9.8 UPGRADE WAC on the Sangfor Sundray WLAN Controller version 3.7.4.2 and earlier has a backdoor account allowing a remot