How severe is CVE-2026-4564?

CVE-2026-4564 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-4564 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-4564?

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

Does CVE-2026-4564 have an EU (EUVD) identifier?

Yes. CVE-2026-4564 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-14341.

When was CVE-2026-4564 published?

CVE-2026-4564 was published on 2026-03-23 and last updated on 2026-06-17.

CVE-2026-4564

CVE-2026-4564 is a medium-severity vulnerability with a CVSS 3.x base score of 4.7. 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-74.

Key facts

Severity: Medium (CVSS 3.x base score 4.7)
CVSS v2: 5.8
CVSS v4: 2.0
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-14341
Weakness: CWE-74
Published: 2026-03-23
Last modified: 2026-06-17

Description

A security vulnerability has been detected in yangzongzhuan RuoYi up to 4.8.2. This issue affects some unknown processing of the file /monitor/job/ of the component Quartz Job Handler. Such manipulation of the argument invokeTarget leads to code injection. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Frequently asked questions

What is CVE-2026-4564?: A security vulnerability has been detected in yangzongzhuan RuoYi up to 4.8.2. This issue affects some unknown processing of the file /monitor/job/ of the component Quartz Job Handler. Such manipulation of the argument invokeTarget leads to code injection. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
How severe is CVE-2026-4564?: CVE-2026-4564 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-4564 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-4564?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-4564 have an EU (EUVD) identifier?: Yes. CVE-2026-4564 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-14341.
When was CVE-2026-4564 published?: CVE-2026-4564 was published on 2026-03-23 and last updated on 2026-06-17.

References

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