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CVE-2021-2136

32
FAUCET Score

CVE-2021-2136 is a critical vulnerability in Oracle WebLogic Server (Core component), affecting versions 12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0, and 14.1.1.0.0. This easily exploitable flaw allows an unauthenticated attacker with network access via IIOP to fully compromise the server, leading to complete loss of confidentiality, integrity, and availability. With a CVSS v3.1 score of 9.8 (Critical), it poses a severe risk for affected systems. While there is no evidence of active exploitation, public exploit code, or KEV listing, the vulnerability has garnered significant community discussion with 10 mentions.

Impacted Technologies

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

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.24%
Probability of exploitation in next 30 days
EPSS Percentile
81.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0224 is in the 70th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

oraclepatch availablevia nvd_reference
View patch

References

oracle.com / security-alerts/cpuapr2021.html
PatchVendor Advisory