How severe is CVE-2021-2109?

CVE-2021-2109 has a CVSS score of 7.2/10, rated HIGH. Immediate patching is strongly recommended.

Which packages are affected by CVE-2021-2109?

Affected package information for CVE-2021-2109 is not yet fully mapped. Check the official advisory links for details.

How do I fix CVE-2021-2109?

No fixed version has been published for CVE-2021-2109 yet. Monitor the advisory for updates, apply mitigations recommended by the vendor, and use O3 Security to track when a fix becomes available in your stack.

Is CVE-2021-2109 actively exploited in the wild?

Yes. There are 11 known exploit references for CVE-2021-2109, including 1 documented proof-of-concept exploit on Exploit-DB and 6 in-the-wild exploitations observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for CVE-2021-2109?

CVE-2021-2109 has an EPSS (Exploit Prediction Scoring System) score of 91.7%, placing it in the 100th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. A score above 50% indicates significantly elevated exploitation risk — immediate patching is strongly recommended.

Which products and versions are affected by CVE-2021-2109?

CVE-2021-2109 affects oracle weblogic server (5 versions, e.g. 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0…). Check the affected-products list on this page against your deployed version to confirm exposure.

When was CVE-2021-2109 published, and has it been updated?

CVE-2021-2109 was published on January 20, 2021 and was last updated on November 21, 2024. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

CVE-2021-2109: Weblogic Server (High 7.2)

EPSS Exploitation Probability

via FIRST.org ↗

91.7%probability of exploitation in next 30 days

Very High Risk100th percentile0.00%

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Description

Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Console). Supported versions that are affected are 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0 and 14.1.1.0.0. Easily exploitable vulnerability allows high privileged attacker with network access via HTTP to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server. CVSS 3.1 Base Score 7.2 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H).

Affected Products

1 product · 5 configurations

Application

weblogic serveroracle

5 versions

10.3.6.0.012.1.3.0.012.2.1.3.012.2.1.4.014.1.1.0.0

Frequently Asked Questions

Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Console). Supported versions that are affected are 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0 and 14.1.1.0.0. Easily exploitable vulnerability allows high privileged attacker with network access via HTTP to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server. CVSS 3.1 Base Score 7.2 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H).

O3 Security · Impact-Aware SCA

Is CVE-2021-2109 in your stack?

O3 detects CVE-2021-2109 across dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

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