CVE-2018-9843
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.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 16.7%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.
Description
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.
- 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
- 16.70% probability · 97th percentile
- Public exploits
- 1 in Exploit-DB · first 9 April 2018
- CISA KEV
- Not listed
- Weakness
- CWE-502
- Affected
- cyberark/password vault
- Source
- cve@mitre.org
EPSS moved from 11.9% on 21 September 2026 to 16.7% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://seclists.org/fulldisclosure/2018/Apr/18Exploit, Mailing List, Third Party Advisory
- http://www.securityfocus.com/archive/1/541932/100/0/threadedExploit, Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040675Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/44429/Exploit, Third Party Advisory, VDB Entry
- https://www.redteam-pentesting.de/en/advisories/rt-sa-2017-014/-cyberark-password-vault-web-access-remote-code-executionExploit, Third Party Advisory
- http://seclists.org/fulldisclosure/2018/Apr/18Exploit, Mailing List, Third Party Advisory
- http://www.securityfocus.com/archive/1/541932/100/0/threadedExploit, Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040675Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/44429/Exploit, Third Party Advisory, VDB Entry
- https://www.redteam-pentesting.de/en/advisories/rt-sa-2017-014/-cyberark-password-vault-web-access-remote-code-executionExploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.