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CVE-2021-2464

25
FAUCET Score

CVE-2021-2464 is a highly severe vulnerability affecting Oracle Linux versions 7 and 8, specifically within the OSwatcher component. A low-privileged attacker with local logon access can easily exploit this flaw, leading to a complete compromise of the Oracle Linux system, impacting confidentiality, integrity, and availability. With a CVSS score of 7.8 (High), this vulnerability is considered easily exploitable with no user interaction required. There is currently no public exploit code available, nor is there evidence of active exploitation or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
12.1.0.2CPE matchmatch criteria
cpe:2.3:o:oracle:engineered_systems_utilities:12.1.0.2:*:*:*:*:*:*:*
19cCPE matchmatch criteria
cpe:2.3:o:oracle:engineered_systems_utilities:19c:*:*:*:*:*:*:*
21cCPE matchmatch criteria
cpe:2.3:o:oracle:engineered_systems_utilities:21c:*:*:*:*:*:*:*
7CPE matchmatch criteria
cpe:2.3:o:oracle:linux:7:-:*:*:*:*:*:*
8CPE matchmatch criteria
cpe:2.3:o:oracle:linux:8:-:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.33%
Probability of exploitation in next 30 days
EPSS Percentile
25.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0033 is in the 64th percentile among its peer group of 17,061 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 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

linux.oracle.com / errata/ELSA-2021-9444.html
Vendor Advisory
oracle.com / security-alerts/cpuapr2022.html
PatchVendor Advisory