How severe is CVE-2021-2461?

High severity. CVSS v3 base score is 8.3 out of 10.

Is CVE-2021-2461 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Oracle Communications Interactive Session Recorder

CVE-2021-2461

Vulnerability in the Oracle Communications Interactive Session Recorder product of Oracle Communications (component: Provision API). The supported version that is affected is 6.4. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Communications Interactive Session Recorder. While the vulnerability is in Oracle Communications Interactive Session Recorder, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle Communications Interactive Session Recorder accessible data as well as unauthorized read access to a subset of Oracle Communications Interactive Session Recorder accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Communications Interactive Session Recorder. CVSS 3.1 Base Score 8.3 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L).

Published 2021-10-20 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.011 (64.6th percentile), scored 2026-11-01.

Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 64.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Oracle Communications Interactive Session Recorder — versions 6.4
Oracle Corporation Communications Interactive Session Recorder — versions 6.4

Public proof-of-concept exploits

References

www.oracle.com/security-alerts/cpuoct2021.html (Vendor Advisory)

Frequently asked questions

What is CVE-2021-2461?: CVE-2021-2461 is a high-severity vulnerability in Oracle Communications Interactive Session Recorder. CVSS score: 8.3/10. Published 2021-10-20.
How severe is CVE-2021-2461?: High severity. CVSS v3 base score is 8.3 out of 10.
Is CVE-2021-2461 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.