Actively exploited · Published Jul 16, 2019 · Assigned by mitre
CVE-2019-12991
High 8.8 Exploited
In plain English
A high-severity OS command injection in SD-WAN and NetScaler from Citrix. Attackers are actively exploiting it in the wild (listed by CISA on March 25, 2022). The chance it is exploited in the next 30 days is estimated at 74.1% (higher than 99.5% of all known vulnerabilities). Apply updates per vendor instructions.
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)74.1%top 0.5% of all CVEs
Exploited in the wildYesCISA KEV since Mar 25, 2022
Attack toolingNoneno public tooling known
CISA guidance
Apply updates per vendor instructions.
Federal agencies must remediate by Apr 15, 2022.
Official description
Citrix SD-WAN 10.2.x before 10.2.3 and NetScaler SD-WAN 10.0.x before 10.0.8 have Improper Input Validation (issue 5 of 6).
Affected products (as reported)
Weakness: CWE-78 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
- https://www.tenable.com/security/research/tra-2019-32 x_refsource_MISC
- 109133 vdb-entry, x_refsource_BID
- http://packetstormsecurity.com/files/153638/Citrix-SD-WAN-Appliance-10.2.2-Authentication-Bypass-Remote-Command-Execution.html x_refsource_MISC
- https://support.citrix.com/article/CTX251987 x_refsource_MISC
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-12991 government-resource