CVE-2021-1419

Cisco Access Points SSH Management Privilege Escalation Vulnerability

HIGH
7.8
CVSS Score
Published: September 23, 2021 at 02:30 AM UTC
Updated: June 17, 2026 at 03:31 AM UTC
85 products affected across 1 vendorWireless LAN Controller SoftwareAironet 1542I FirmwareAironet 1542D Firmware

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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

A vulnerability in the SSH management feature of multiple Cisco Access Points (APs) platforms could allow a local, authenticated user to modify files on the affected device and possibly gain escalated privileges. The vulnerability is due to improper checking on file operations within the SSH management interface. A network administrator user could exploit this vulnerability by accessing an affected device through SSH management to make a configuration change. A successful exploit could allow the attacker to gain privileges equivalent to the root user.

Affected

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

All versions
cisco-1100-8p (same device)
All versions
cisco-1120 (same device)
All versions
cisco-1160-integrated-services-router (same device)
All versions
cisco-aironet-1542d (same device)
All versions
cisco-aironet-1542i (same device)
All versions
cisco-aironet-1562d (same device)
All versions
cisco-aironet-1562e (same device)
All versions
cisco-aironet-1562i (same device)
All versions
cisco-aironet-1815i (same device)
All versions
cisco-aironet-1815m (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

7.8HIGHcisco
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-284NVD-CWE-Other

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