Is CVE-2021-1535 in the CISA KEV catalog?

No. CVE-2021-1535 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-1535?

CVE-2021-1535 has a CVSS v3 base score of 5.3 (MEDIUM).

What is the EPSS score for CVE-2021-1535?

CVE-2021-1535 has an EPSS score of 1.22% (65th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-1535?

Upgrade sd-wan vmanage to 20.5.1 or later.

CVE & CISA-KEV Catalog

CVE-2021-1535

MEDIUM

5.3

CVSS v3

NVD

Description

A vulnerability in the cluster management interface of Cisco SD-WAN vManage Software could allow an unauthenticated, remote attacker to view sensitive information on an affected system. To be affected by this vulnerability, the Cisco SD-WAN vManage Software must be in cluster mode. This vulnerability is due to the absence of authentication for sensitive information in the cluster management interface. An attacker could exploit this vulnerability by sending a crafted request to the cluster management interface of an affected system. A successful exploit could allow the attacker to allow the attacker to view sensitive information on the affected system.

CWE-497

How to fix

Remediation Available

sd-wan vmanageNVD

Affected:< 20.5.1Fixed in:20.5.1CVE-2021-1535derived 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 ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

1.22%probability of exploitation in 30 days

65thpercentile

Moderate risk: more likely to be exploited than 65% of all known CVEs.

References

Vendor Advisory1

tools.cisco.com

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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.