How severe is CVE-2023-37943?

CVE-2023-37943 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-37943 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-37943?

CVE-2023-37943 affects Jenkins Active Directory. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-37943?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-37943 published?

CVE-2023-37943 was published on 2023-07-12 and last updated on 2026-06-17.

CVE-2023-37943

CVE-2023-37943 is a medium-severity vulnerability in Jenkins Active Directory with a CVSS 3.x base score of 5.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-311.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
EPSS exploit prediction: 0% (30th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-311
Affected product: Jenkins Active Directory
Published: 2023-07-12
Last modified: 2026-06-17

Description

Jenkins Active Directory Plugin 2.30 and earlier ignores the "Require TLS" and "StartTls" options and always performs the connection test to Active directory unencrypted, allowing attackers able to capture network traffic between the Jenkins controller and Active Directory servers to obtain Active Directory credentials.

Frequently asked questions

What is CVE-2023-37943?: Jenkins Active Directory Plugin 2.30 and earlier ignores the "Require TLS" and "StartTls" options and always performs the connection test to Active directory unencrypted, allowing attackers able to capture network traffic between the Jenkins controller and Active Directory servers to obtain Active Directory credentials.
How severe is CVE-2023-37943?: CVE-2023-37943 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-37943 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-37943?: CVE-2023-37943 affects Jenkins Active Directory. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-37943?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-37943 published?: CVE-2023-37943 was published on 2023-07-12 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:jenkins:active_directory:*:*:*:*:*:jenkins:*:*

More vulnerabilities in Jenkins Active Directory

CVE-2020-2301 — Critical (CVSS 9.8): Jenkins Active Directory Plugin 2.19 and earlier allows attackers to log in as any user with any password while a…
CVE-2020-2300 — Critical (CVSS 9.8): Jenkins Active Directory Plugin 2.19 and earlier does not prohibit the use of an empty password in Windows/ADSI mode,…
CVE-2020-2299 — Critical (CVSS 9.8): Jenkins Active Directory Plugin 2.19 and earlier allows attackers to log in as any user if a magic constant is used as…
CVE-2017-2649 — High (CVSS 8.1): It was found that the Active Directory Plugin for Jenkins up to and including version 2.2 did not verify certificates…
CVE-2019-1003009 — High (CVSS 7.4): An improper certificate validation vulnerability exists in Jenkins Active Directory Plugin 2.10 and earlier in…
CVE-2026-48919 — Medium (CVSS 6.6): Jenkins Active Directory Plugin 2.41 and earlier deserializes data from LDAP referrals without validation.

All CVEs affecting Jenkins Active Directory →

Other CWE-311 (Missing Encryption of Sensitive Data) vulnerabilities

CVE-2023-6339 — Critical (CVSS 10.0): Google Nest WiFi Pro root code-execution & user-data compromise
CVE-2023-4420 — Critical (CVSS 9.8): A remote unprivileged attacker can intercept the communication via e.g. Man-In-The-Middle, due to the absence of…
CVE-2023-0750 — Critical (CVSS 9.8): Yellobrik PEC-1864 implements authentication checks via javascript in the frontend interface. When the device can be…
CVE-2020-15331 — Critical (CVSS 9.8): Zyxel CloudCNM SecuManager 3.1.0 and 3.1.1 has a hardcoded OAUTH_SECRET_KEY in /opt/axess/etc/default/axess.
CVE-2019-3431 — Critical (CVSS 9.8): All versions up to V4.01.01.02 of ZTE ZXCLOUD GoldenData VAP product have encryption problems vulnerability. Attackers…
CVE-2019-12924 — Critical (CVSS 9.8): MailEnable Enterprise Premium 10.23 was vulnerable to XML External Entity Injection (XXE) attacks that could be…

Browse all CWE-311 (Missing Encryption of Sensitive Data) vulnerabilities →