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CVE-2021-2371

24
FAUCET Score

CVE-2021-2371 is a critical vulnerability in Oracle Coherence, affecting versions 3.7.1.0 through 14.1.1.0.0. This easily exploitable flaw allows an unauthenticated attacker, with network access via T3 or IIOP, to cause a complete denial of service (DoS) by repeatedly crashing the Coherence instance. With a CVSS v3.1 score of 7.5 (High), the attack requires no user interaction and has a low attack complexity, solely impacting availability. Currently, there is no public exploit code available, no evidence of active exploitation, and minimal community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
3.7.1.0CPE matchmatch criteria
cpe:2.3:a:oracle:coherence:3.7.1.0:*:*:*:*:*:*:*
12.1.3.0.0CPE matchmatch criteria
cpe:2.3:a:oracle:coherence:12.1.3.0.0:*:*:*:*:*:*:*
12.2.1.3.0CPE matchmatch criteria
cpe:2.3:a:oracle:coherence:12.2.1.3.0:*:*:*:*:*:*:*
12.2.1.4.0CPE matchmatch criteria
cpe:2.3:a:oracle:coherence:12.2.1.4.0:*:*:*:*:*:*:*
14.1.1.0.0CPE matchmatch criteria
cpe:2.3:a:oracle:coherence:14.1.1.0.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.17%
Probability of exploitation in next 30 days
EPSS Percentile
64.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0117 is in the 43rd percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

oraclevendor investigatingvia nvd_reference
View patch

References

oracle.com / security-alerts/cpujul2021.html
Vendor Advisory