High severity7.5NVD Advisory· Published Jul 9, 2026· Updated Aug 11, 2026

CVE-2026-31984

Description

A denial-of-service vulnerability caused by unbounded resource allocation was discovered in the audit logging functionality, due to a missing size limit on input recorded into audit entries. An unauthenticated attacker can submit requests containing excessively large input that is recorded into audit entries, possibly exhausting the available disk space and rendering the system inoperable.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Nozominetworks/audit logging functionalityllm-create
Nozominetworks/Cmc
cpe:2.3:a:nozominetworks:cmc:*:*:*:*:*:*:*:*
Range: <26.2.0
Nozominetworks/Guardian
cpe:2.3:a:nozominetworks:guardian:*:*:*:*:*:*:*:*
Range: <26.2.0

Patches

Vulnerability mechanics

References

security.nozominetworks.com/NN-2026:11-01nvdMitigationVendor Advisory
cert-portal.siemens.com/productcert/html/ssa-827968.htmlnvd

News mentions

No linked articles in our index yet.

Severity

HighCVSS v3.1

7.5/ 10

CVSS v48.7

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack vector: Network
Complexity: Low
Privileges: None
User interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: None
Availability: High

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

Probability of exploitation in the next 30 days.

0.51%

VYPR risk score

Composite of severity, exploitation, and reach.

0.49medium

cvss	0.488
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000

Weaknesses

CWE-770
Allocation of Resources Without Limits or Throttling

CVE ID

CVE-2026-31984

Credits

TI
This issue was found by Andrea Palanca of Nozomi Networks Product Security team during an internal investigation.
finder