CVE-2020-3260

Cisco Aironet Series Access Points Client Packet Processing Denial of Service Vulnerability

MEDIUM
6.5
CVSS Score
Published: April 15, 2020 at 08:11 PM UTC
Updated: June 17, 2026 at 03:17 AM UTC
13 products affected across 1 vendorAironet 1542I FirmwareAironet 1542D FirmwareAironet 1815 Firmware

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

A vulnerability in Cisco Aironet Series Access Points Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to the improper processing of client packets that are sent to an affected access point (AP). An attacker could exploit this vulnerability by sending a large number of sustained client packets to the affected AP. A successful exploit could allow the attacker to cause the affected AP to crash, resulting in a DoS condition.

Affected

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

cisco-aironet-1542d (same device)
cisco-aironet-1542i (same device)
cisco-aironet-1815 (same device)
cisco-aironet-1830 (same device)
cisco-aironet-1840 (same device)
cisco-aironet-1850 (same device)
All versions
All versions
All versions

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 automatablePartial impact

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

CVSS

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

Quick Info

StatusMODIFIED
CWE
CWE-399CWE-400

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