CVE-2023-20033

HIGH
8.6
CVSS Score
Published: September 27, 2023 at 05:20 PM UTC
Updated: June 17, 2026 at 05:29 AM UTC
125 products affected across 1 vendorIOS XeCatalyst 3850-24Xu-ECatalyst 3850-16Xs-S

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Severity
HIGH8.6
Exploit prediction
EPSS 0.9%
SSVC
PoC

Description

A vulnerability in Cisco IOS XE Software for Cisco Catalyst 3650 and Catalyst 3850 Series Switches could allow an unauthenticated, remote attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to improper resource management when processing traffic that is received on the management interface. An attacker could exploit this vulnerability by sending a high rate of traffic to the management interface. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.

Affected

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

cisco-catalyst-3650-12x48fd-e (environment) · cisco-catalyst-3650-12x48fd-l (environment) · cisco-catalyst-3650-12x48fd-s (environment) · cisco-catalyst-3650-12x48uq (environment) · cisco-catalyst-3650-12x48uq-e (environment) · cisco-catalyst-3650-12x48uq-l (environment) · cisco-catalyst-3650-12x48uq-s (environment) · cisco-catalyst-3650-12x48ur (environment) · cisco-catalyst-3650-12x48ur-e (environment) · cisco-catalyst-3650-12x48ur-l (environment) · cisco-catalyst-3650-12x48ur-s (environment) · cisco-catalyst-3650-12x48uz (environment) · cisco-catalyst-3650-12x48uz-e (environment) · cisco-catalyst-3650-12x48uz-l (environment) · cisco-catalyst-3650-12x48uz-s (environment) · cisco-catalyst-3650-24pd (environment) · cisco-catalyst-3650-24pd-e (environment) · cisco-catalyst-3650-24pd-l (environment) · cisco-catalyst-3650-24pd-s (environment) · cisco-catalyst-3650-24pdm (environment) · cisco-catalyst-3650-24pdm-e (environment) · cisco-catalyst-3650-24pdm-l (environment) · cisco-catalyst-3650-24pdm-s (environment) · cisco-catalyst-3650-24ps-e (environment) · cisco-catalyst-3650-24ps-l (environment) · cisco-catalyst-3650-24ps-s (environment) · cisco-catalyst-3650-24td-e (environment) · cisco-catalyst-3650-24td-l (environment) · cisco-catalyst-3650-24td-s (environment) · cisco-catalyst-3650-24ts-e (environment) · cisco-catalyst-3650-24ts-l (environment) · cisco-catalyst-3650-24ts-s (environment) · cisco-catalyst-3650-48fd-e (environment) · cisco-catalyst-3650-48fd-l (environment) · cisco-catalyst-3650-48fd-s (environment) · cisco-catalyst-3650-48fq (environment) · cisco-catalyst-3650-48fq-e (environment) · cisco-catalyst-3650-48fq-l (environment) · cisco-catalyst-3650-48fq-s (environment) · cisco-catalyst-3650-48fqm (environment) · cisco-catalyst-3650-48fqm-e (environment) · cisco-catalyst-3650-48fqm-l (environment) · cisco-catalyst-3650-48fqm-s (environment) · cisco-catalyst-3650-48fs-e (environment) · cisco-catalyst-3650-48fs-l (environment) · cisco-catalyst-3650-48fs-s (environment) · cisco-catalyst-3650-48pd-e (environment) · cisco-catalyst-3650-48pd-l (environment) · cisco-catalyst-3650-48pd-s (environment) · cisco-catalyst-3650-48pq-e (environment) · cisco-catalyst-3650-48pq-l (environment) · cisco-catalyst-3650-48pq-s (environment) · cisco-catalyst-3650-48ps-e (environment) · cisco-catalyst-3650-48ps-l (environment) · cisco-catalyst-3650-48ps-s (environment) · cisco-catalyst-3650-48td-e (environment) · cisco-catalyst-3650-48td-l (environment) · cisco-catalyst-3650-48td-s (environment) · cisco-catalyst-3650-48tq-e (environment) · cisco-catalyst-3650-48tq-l (environment) · cisco-catalyst-3650-48tq-s (environment) · cisco-catalyst-3650-48ts-e (environment) · cisco-catalyst-3650-48ts-l (environment) · cisco-catalyst-3650-48ts-s (environment) · cisco-catalyst-3650-8x24pd-e (environment) · cisco-catalyst-3650-8x24pd-l (environment) · cisco-catalyst-3650-8x24pd-s (environment) · cisco-catalyst-3650-8x24uq (environment) · cisco-catalyst-3650-8x24uq-e (environment) · cisco-catalyst-3650-8x24uq-l (environment) · cisco-catalyst-3650-8x24uq-s (environment) · cisco-catalyst-3850-12s-e (environment) · cisco-catalyst-3850-12s-s (environment) · cisco-catalyst-3850-12x48u (environment) · cisco-catalyst-3850-12xs-e (environment) · cisco-catalyst-3850-12xs-s (environment) · cisco-catalyst-3850-16xs-e (environment) · cisco-catalyst-3850-16xs-s (environment) · cisco-catalyst-3850-24p-e (environment) · cisco-catalyst-3850-24p-l (environment) · cisco-catalyst-3850-24p-s (environment) · cisco-catalyst-3850-24pw-s (environment) · cisco-catalyst-3850-24s-e (environment) · cisco-catalyst-3850-24s-s (environment) · cisco-catalyst-3850-24t-e (environment) · cisco-catalyst-3850-24t-l (environment) · cisco-catalyst-3850-24t-s (environment) · cisco-catalyst-3850-24u (environment) · cisco-catalyst-3850-24u-e (environment) · cisco-catalyst-3850-24u-l (environment) · cisco-catalyst-3850-24u-s (environment) · cisco-catalyst-3850-24xs (environment) · cisco-catalyst-3850-24xs-e (environment) · cisco-catalyst-3850-24xs-s (environment) · cisco-catalyst-3850-24xu (environment) · cisco-catalyst-3850-24xu-e (environment) · cisco-catalyst-3850-24xu-l (environment) · cisco-catalyst-3850-24xu-s (environment) · cisco-catalyst-3850-32xs-e (environment) · cisco-catalyst-3850-32xs-s (environment) · cisco-catalyst-3850-48f-e (environment) · cisco-catalyst-3850-48f-l (environment) · cisco-catalyst-3850-48f-s (environment) · cisco-catalyst-3850-48p-e (environment) · cisco-catalyst-3850-48p-l (environment) · cisco-catalyst-3850-48p-s (environment) · cisco-catalyst-3850-48pw-s (environment) · cisco-catalyst-3850-48t-e (environment) · cisco-catalyst-3850-48t-l (environment) · cisco-catalyst-3850-48t-s (environment) · cisco-catalyst-3850-48u (environment) · cisco-catalyst-3850-48u-e (environment) · cisco-catalyst-3850-48u-l (environment) · cisco-catalyst-3850-48u-s (environment) · cisco-catalyst-3850-48xs (environment) · cisco-catalyst-3850-48xs-e (environment) · cisco-catalyst-3850-48xs-f-e (environment) · cisco-catalyst-3850-48xs-f-s (environment) · cisco-catalyst-3850-48xs-s (environment) · cisco-catalyst-3850-nm-2-40g (environment) · cisco-catalyst-3850-nm-8-10g (environment) · cisco-catalyst-c3850-12x48u-e (environment) · cisco-catalyst-c3850-12x48u-l (environment) · cisco-catalyst-c3850-12x48u-s (environment)
All versions
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Remediation

No guide yet

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

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

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

CVSS

8.6HIGHcisco
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-770NVD-CWE-noinfo

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