How severe is CVE-2025-21549?

CVE-2025-21549 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2025-21549 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-21549?

CVE-2025-21549 affects Oracle Weblogic Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-21549?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-21549 have an EU (EUVD) identifier?

Yes. CVE-2025-21549 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-2538.

When was CVE-2025-21549 published?

CVE-2025-21549 was published on 2025-01-21 and last updated on 2026-06-17.

CVE-2025-21549

CVE-2025-21549 is a high-severity vulnerability in Oracle Weblogic Server with a CVSS 3.x base score of 7.5. 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-400.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (41st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-2538
Weakness: CWE-400
Affected product: Oracle Weblogic Server
Published: 2025-01-21
Last modified: 2026-06-17

Description

Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). The supported version that is affected is 14.1.1.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP/2 to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle WebLogic Server. CVSS 3.1 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

Frequently asked questions

What is CVE-2025-21549?: Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). The supported version that is affected is 14.1.1.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP/2 to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle WebLogic Server. CVSS 3.1 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
How severe is CVE-2025-21549?: CVE-2025-21549 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2025-21549 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-21549?: CVE-2025-21549 affects Oracle Weblogic Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-21549?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-21549 have an EU (EUVD) identifier?: Yes. CVE-2025-21549 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-2538.
When was CVE-2025-21549 published?: CVE-2025-21549 was published on 2025-01-21 and last updated on 2026-06-17.

References

https://www.oracle.com/security-alerts/cpujan2025.html

Affected products (1)

cpe:2.3:a:oracle:weblogic_server:14.1.1.0.0:*:*:*:*:*:*:*

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