CVE-2023-32649

DoS on IDS parsing of malformed asset fields in Guardian/CMC >= 22.6.0 before 22.6.3 and 23.1.0

HIGH
7.5
CVSS Score
Published: September 19, 2023 at 10:06 AM UTC
Updated: June 17, 2026 at 05:59 AM UTC
2 products affected across 1 vendorGuardianCMC

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Severity
HIGH7.5
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

Description

A Denial of Service (Dos) vulnerability in Nozomi Networks Guardian and CMC, due to improper input validation in certain fields used in the Asset Intelligence functionality of our IDS, allows an unauthenticated attacker to crash the IDS module by sending specially crafted malformed network packets. During the (limited) time window before the IDS module is automatically restarted, network traffic may not be analyzed.

Affected

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

22.6.0 ≤ v < 22.6.323.0.0 ≤ v < 23.1.022.6.023.0.0
Affected range stops below 22.6.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 23.1.0, so it looks safe — our inference, not a vendor statement
22.6.0 ≤ v < 22.6.323.0.0 ≤ v < 23.1.022.6.023.0.0
Affected range stops below 22.6.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 23.1.0, 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:

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

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

CVSS

7.5HIGHNozomi
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-1286CWE-20

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