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CVE-2021-1127

Cisco Enterprise NFV Infrastructure Software Cross-Site Scripting Vulnerability

MEDIUM
5.4
CVSS Score
Published: January 13, 2021 at 09:20 PM UTC
Updated: June 17, 2026 at 03:31 AM UTC
1 product affected across 1 vendorEnterprise Nfv Infrastructure

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Severity
MEDIUM5.4
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

Description

A vulnerability in the web-based management interface of Cisco Enterprise NFV Infrastructure Software (NFVIS) could allow an authenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the web-based management interface. The vulnerability is due to improper input validation of log file content stored on the affected device. An attacker could exploit this vulnerability by modifying a log file with malicious code and getting a user to view the modified log file. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or to access sensitive, browser-based information.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Enterprise Nfv Infrastructure· Cisco
95%
v < 4.4.1
Affected range stops below 4.4.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisoryx_refsource_CISCO
Source: [email protected]
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nfvis-xss-smsz5Vhb

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.4MEDIUMcisco
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-79

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