9.8

CVE-2018-9843: cyberark password_vault Deserialization of Untrusted Data

CVSS: 9.8v3.0CriticalModified
Published 12-04-2018Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2018-9843 is a critical (CVSS 9.8) Deserialization of Untrusted Data vulnerability in cyberark password_vault. EPSS estimates a 16.70% chance of exploitation in the next 30 days, higher than 97% of scored vulnerabilities. 4 public exploits are recorded.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.0 (NVD)
EPSS score
16.70%
0%100%
Medium · +4.85 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits4reference, exploit-database

Timeline

  1. 12-04-2018
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

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 metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

16.70%

Chance of exploitation in the next 30 days

Percentile

97%

Versus all other CVEs

30-day change

+4.85 pp

From 11.85% on 21-09-2026

21-09-202621-10-2026
EPSS score
16.70%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

4 found
  • referenceUnverified

    Exploit Reference (seclists.org)

    Maturity: unknown

  • referenceUnverified

    Exploit Reference (redteam-pentesting.de)

    Maturity: unknown

  • referenceUnverified

    Exploit Reference (securityfocus.com)

    Maturity: unknown

Show all 4 exploits
  • exploit-databasejsonUnverified

    CyberArk Password Vault Web Access < 9.9.5 / < 9.10 / 10.1 - Remote Code Execution

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Cyberark1 product

1 vendor · 1 product

References

5 links