TI-2021-01261 Aliases CVE-2021-1535 GHSA-w33v-4593-fj4h

Cisco SD-WAN vManage Information Disclosure Vulnerability

LOW 32CWE-497Published 2021-05-06 · Updated 2024-11-08

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Information disclosure
Confidentiality · integrity · availability: Low · None · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-497.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.01218 68th percentileScored 2026-11-08

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Cisco	Cisco SD-WAN vManage	all versions	—	No fix listed	CNA

Cisco SD-WAN vManage VendorCisco Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:cisco:sd-wan_vmanage::::::::	before 20.5.1	Vulnerable	Cisco

cpe:2.3:a:cisco:sd-wan_vmanage:*:*:*:*:*:*:*:* Versions before 20.5.1 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2021-1535
2026-10-03 Alias added: GHSA-w33v-4593-fj4h

References

Advisory 1

20210505 Cisco SD-WAN vManage Information Disclosure Vulnerability

TI-2021-19919 Apache Log4j2 JNDI features do not protect against attacker controlled LDAP and other JNDI related endpoints KEVCVSS 3.1CRITICAL 10.0
TI-2022-05377 Cisco SD-WAN Software Privilege Escalation Vulnerabilities CVSS 3.1HIGH 7.8
TI-2021-01195 Cisco SD-WAN vManage Software Vulnerabilities CVSS 3.1CRITICAL 9.8
TI-2021-01002 Cisco SD-WAN vManage Software Vulnerabilities CVSS 3.1CRITICAL 9.8
TI-2021-01235 Cisco SD-WAN vManage Software Vulnerabilities CVSS 3.1CRITICAL 9.8
TI-2021-01233 Cisco SD-WAN vManage Software Vulnerabilities CVSS 3.1CRITICAL 9.8

See all 41 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences