CVE-2019-12662

Cisco NX-OS and IOS XE Software Virtual Service Image Signature Bypass Vulnerability

MEDIUM
6.7
CVSS Score
Published: September 25, 2019 at 08:16 PM UTC
Updated: June 17, 2026 at 02:15 AM UTC
135 products affected across 1 vendorIOS XeNx OSNexus 3464C Firmware

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Severity
MEDIUM6.7
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

A vulnerability in Cisco NX-OS Software and Cisco IOS XE Software could allow an authenticated, local attacker with valid administrator or privilege level 15 credentials to load a virtual service image and bypass signature verification on an affected device. The vulnerability is due to improper signature verification during the installation of an Open Virtual Appliance (OVA) image. An authenticated, local attacker could exploit this vulnerability and load a malicious, unsigned OVA image on an affected device. A successful exploit could allow an attacker to perform code execution on a crafted software OVA image.

Affected

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

All versions
cisco-nexus-3016 (same device)
All versions
cisco-nexus-3048 (same device)
All versions
cisco-nexus-3064 (same device)
All versions
cisco-nexus-3064-t (same device)
All versions
cisco-nexus-31108pc-v (same device)
All versions
cisco-nexus-31108tc-v (same device)
All versions
cisco-nexus-31128pq (same device)
All versions
cisco-nexus-3132c-z (same device)
All versions
cisco-nexus-3132q (same device)

Remediation

No guide yet

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

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

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

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-347

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