No exploitation reportedFix available

CVE-2019-9823

Q: Is CVE-2019-9823 actively exploited?

Active exploitation of CVE-2019-9823 has not been confirmed. Its EPSS score was 1.6% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2019-9823?

CVE-2019-9823 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

No exploitation reported by the sources we read.

Published2019-07-03
Fixed in2018.3.5 · 2018.2.8 · 2018.1.8
WeaknessCWE-312 · CWE-522

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

In several JetBrains IntelliJ IDEA versions, creating remote run configurations of JavaEE application servers leads to saving a cleartext record of the server credentials in the IDE configuration files. The issue has been fixed in the following versions: 2018.3.5, 2018.2.8, 2018.1.8.

Timeline

dates in UTC

2019-07-0319:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2019-9823?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2019-9823?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Jetbrains intellij idea

Branch	Affected	Fixed in	Source
2018.3	≥ 2018.3, < 2018.3.5	2018.3.5	NVD
2018.2	≥ 2018.2, < 2018.2.8	2018.2.8	NVD
2018.1	≥ 2018.1, < 2018.1.8	2018.1.8	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Jetbrains intellij idea to 2018.3.5 · 2018.2.8 · 2018.1.8

Advisories and patches

blog.jetbrains.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.09.8read 2026-10-23
NVDCVSS 2.05read 2026-10-23
NVDweakness (CWE)CWE-312, CWE-522read 2026-10-23
FIRST EPSSEPSS score1.6 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2019-07-03
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2019-9823?

Is CVE-2019-9823 actively exploited?

Active exploitation of CVE-2019-9823 has not been confirmed. Its EPSS score was 1.6% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-9823?

CVE-2019-9823 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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