CVE-2018-9843
The REST API in CyberArk Password Vault Web Access before 9.9.5 and 10.x before 10.1 allows...
The REST API in CyberArk Password Vault Web Access before 9.9.5 and 10.x before 10.1 allows remote attackers to execute arbitrary code via a serialized .NET object in an Authorization HTTP header.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
The REST API in CyberArk Password Vault Web Access before 9.9.5 and 10.x before 10.1 allows remote attackers to execute arbitrary code via a serialized .NET object in an Authorization HTTP header.
- Record
CVE-2018-9843- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-502
- Updated
- 2026-11-02
CVE List No score
The REST API in CyberArk Password Vault Web Access before 9.9.5 and 10.x before 10.1 allows remote attackers to execute arbitrary code via a serialized .NET object in an Authorization HTTP header.
- Record
CVE-2018-9843- Updated
- 2026-11-02
EUVDEUVD-2018-21437 No score
The REST API in CyberArk Password Vault Web Access before 9.9.5 and 10.x before 10.1 allows remote attackers to execute arbitrary code via a serialized .NET object in an Authorization HTTP header.
- Record
EUVD-2018-21437- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-897c-mv4m-8fjj
The REST API in CyberArk Password Vault Web Access before 9.9.5 and 10.x before 10.1 allows...
The REST API in CyberArk Password Vault Web Access before 9.9.5 and 10.x before 10.1 allows remote attackers to execute arbitrary code via a serialized .NET object in an Authorization HTTP header.
- Record
GHSA-897c-mv4m-8fjj- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-502
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | CyberArk Password Vault Web Access < 9.9.5 / < 9.10 / 10.1 - Remote Code Execution | 2018-04-09 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-9843 is a critical vulnerability (CVSS 9.8) in Cyberark Password Vault, published April 12, 2018. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 16.7%, the 97th percentile. No source names a fixed version.
References
seclists.org/fulldisclosure/2018/Apr/18
securitytracker.com/id/1040675
exploit-db.com/exploits/44429
redteam-pentesting.de/en/advisories/rt-sa-2017-014/-cyberark-password-vault-web-access-remote-code-execution
securityfocus.com/archive/1/541932/100/0/threaded
nvd.nist.gov/vuln/detail/CVE-2018-9843
github.com/advisories/GHSA-897c-mv4m-8fjj