Is CVE-2021-2351 in the CISA KEV catalog?

No. CVE-2021-2351 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-2351?

CVE-2021-2351 has a CVSS v3 base score of 8.3 (HIGH).

What is the EPSS score for CVE-2021-2351?

CVE-2021-2351 has an EPSS score of 2.50% (83th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-2351?

Upgrade big data spatial and graph to 23.1 or later. Fixes are available for 8 affected products.

CVE & CISA-KEV Catalog

CVE-2021-2351

HIGHEPSS 83th pctl

8.3

CVSS v3

NVD

Description

Vulnerability in the Advanced Networking Option component of Oracle Database Server. Supported versions that are affected are 12.1.0.2, 12.2.0.1 and 19c. Difficult to exploit vulnerability allows unauthenticated attacker with network access via Oracle Net to compromise Advanced Networking Option. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Advanced Networking Option, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in takeover of Advanced Networking Option. Note: The July 2021 Critical Patch Update introduces a number of Native Network Encryption changes to deal with vulnerability CVE-2021-2351 and prevent the use of weaker ciphers. Customers should review: "Changes in Native Network Encryption with the July 2021 Critical Patch Update" (Doc ID 2791571.1). CVSS 3.1 Base Score 8.3 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H).

CWE-327 CWE-384

How to fix

Remediation Available

big data spatial and graphNVD

Affected:< 23.1Fixed in:23.1CVE-2021-2351derived from NVD

goldengateNVD

Affected:>= 19.1.0.0.1, < 21.5.0.0.220118Fixed in:21.5.0.0.220118CVE-2021-2351derived from NVD

goldengate application adaptersNVD

Affected:< 23.1Fixed in:23.1CVE-2021-2351derived from NVD

graph server and clientNVD

Affected:< 21.4.0Fixed in:21.4.0CVE-2021-2351derived from NVD

hospitality inventory managementNVD

Affected:< 9.1.0Fixed in:9.1.0CVE-2021-2351derived from NVD

oss support toolsNVD

Affected:< 2.12.42Fixed in:2.12.42CVE-2021-2351derived from NVD

spatial studioNVD

Affected:< 21.2.1Fixed in:21.2.1CVE-2021-2351derived from NVD

timesten in-memory databaseNVD

Affected:< 21.1.1.1.0Fixed in:21.1.1.1.0CVE-2021-2351derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionRequired

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

2.50%probability of exploitation in 30 days

83rdpercentile

Elevated risk: more likely to be exploited than 83% of all known CVEs.

References

Patch4

Exploit4

Vendor Advisory2

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.