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CISA KEV · Known exploitedHigh

CVE-2024-27199

JetBrains TeamCity

In JetBrains TeamCity before 2023.11.4 path traversal allowing to perform limited admin actions was possible

CVSS
7.3
EPSS
100.0%
100.0% percentile
CISA KEV
Listed
Published
2024.03.05
PRIORITY ASSESSMENT

Immediate review

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.

Known exploitationConfirmed by CISA KEV
Exploit probability100.0%
Technical severityCVSS 7.3

Vulnerability overview

In JetBrains TeamCity before 2023.11.4 path traversal allowing to perform limited admin actions was possible

Affected product and versions

Product
JetBrains TeamCity
Affected versions
< 2023.11.4
Fixed versions
2023.11.4

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
CISA required action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Due date: 2026.05.04
  1. 1
    Identify

    Confirm that JetBrains TeamCity and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CWE
CWE-22, CWE-23
KEV added
2026.04.20
Ransomware use
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