How severe is CVE-2021-2456?

CVE-2021-2456 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-2456 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 81% (100th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-2456?

CVE-2021-2456 affects Oracle Business Intelligence. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-2456?

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

When was CVE-2021-2456 published?

CVE-2021-2456 was published on 2021-07-21 and last updated on 2026-06-17.

CVE-2021-2456

CVE-2021-2456 is a critical-severity vulnerability in Oracle Business Intelligence with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 81% places it in the 100th percentile, indicating an elevated likelihood of exploitation.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 81% (100th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Oracle Business Intelligence
Published: 2021-07-21
Last modified: 2026-06-17

Description

Vulnerability in the Oracle Business Intelligence Enterprise Edition product of Oracle Fusion Middleware (component: Analytics Web General). The supported version that is affected is 12.2.1.4.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Business Intelligence Enterprise Edition. Successful attacks of this vulnerability can result in takeover of Oracle Business Intelligence Enterprise Edition. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

Frequently asked questions

What is CVE-2021-2456?: Vulnerability in the Oracle Business Intelligence Enterprise Edition product of Oracle Fusion Middleware (component: Analytics Web General). The supported version that is affected is 12.2.1.4.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Business Intelligence Enterprise Edition. Successful attacks of this vulnerability can result in takeover of Oracle Business Intelligence Enterprise Edition. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
How severe is CVE-2021-2456?: CVE-2021-2456 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-2456 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 81% (100th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-2456?: CVE-2021-2456 affects Oracle Business Intelligence. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-2456?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2021-2456 published?: CVE-2021-2456 was published on 2021-07-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:oracle:business_intelligence:12.2.1.4.0:*:*:*:enterprise:*:*:*

More vulnerabilities in Oracle Business Intelligence

CVE-2022-23305 — Critical (CVSS 9.8): By design, the JDBCAppender in Log4j 1.2.x accepts an SQL statement as a configuration parameter where the values to be…
CVE-2020-17530 — Critical (CVSS 9.8): Forced OGNL evaluation, when evaluated on raw user input in tag attributes, may lead to remote code execution. Affected…
CVE-2020-9480 — Critical (CVSS 9.8): In Apache Spark 2.4.5 and earlier, a standalone resource manager's master may be configured to require authentication…
CVE-2020-2950 — Critical (CVSS 9.8): Vulnerability in the Oracle Business Intelligence Enterprise Edition product of Oracle Fusion Middleware (component:…
CVE-2018-8013 — Critical (CVSS 9.8): In Apache Batik 1.x before 1.10, when deserializing subclass of `AbstractDocument`, the class takes a string from the…
CVE-2022-23307 — High (CVSS 8.8): CVE-2020-9493 identified a deserialization issue that was present in Apache Chainsaw. Prior to Chainsaw V2.0 Chainsaw…

All CVEs affecting Oracle Business Intelligence →