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Fencer Vulns
critical 10.0

CVE-2021-2256 json

Vulnerability in the Oracle Storage Cloud Software Appliance product of Oracle Storage Gateway (component: Management Console).

published 2021-04-22 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-16715

cvss
10.0
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.7%
EPSS 1.7% chance of exploitation in 30 days, percentile 76%
public exploits
0
none known

Summary

Vulnerability in the Oracle Storage Cloud Software Appliance product of Oracle Storage Gateway (component: Management Console). The supported version that is affected is Prior to 16.3.1.4.2. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Storage Cloud Software Appliance. While the vulnerability is in Oracle Storage Cloud Software Appliance, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in takeover of Oracle Storage Cloud Software Appliance. Note: Updating the Oracle Storage Cloud Software Appliance to version 16.3.1.4.2 or later will address these vulnerabilities. Download the latest version of Oracle Storage Cloud Software Appliance from <a href=" https://www.oracle.com/downloads/cloud/oscsa-downloads.html">here. Refer to Document <a href="https://support.oracle.com/rstype=doc&id=2768897.1">2768897.1 for more details. CVSS 3.1 Base Score 10.0 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H).

Patch / fix

  • Oracle Corporation Cloud Infrastructure 16.3.1.4.2

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
total
Assessed
2 y ago

Exploit prediction

1.67% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 10.0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

  • Oracle Corporation Cloud Infrastructure

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.