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01 Record

CVE-2021-23007

On BIG-IP versions 14.1.4 and 16.0.1.1, when the Traffic Management Microkernel (TMM) process handles certain undisclosed traffic, it may start dropping all fragmented IP traffic. Note: Software

UnratedPUBLISHEDCNA: f5
CNA base scoreUnratedNo CNA CVSS vector

02 Description

On BIG-IP versions 14.1.4 and 16.0.1.1, when the Traffic Management Microkernel (TMM) process handles certain undisclosed traffic, it may start dropping all fragmented IP traffic. Note: Software

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
1.58% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 75.0% of scored records. A rank, not a probability.
NVD base score
5.3 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2021-03-31 17:43Z5 YR AGO
Last updated
2024-08-03 18:58Z2 YR AGO
Reserved
2021-01-06
Assigning CNA
f5
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
No CWE assigned
Data version
5.1
Document digest
d3a237e06ad4ff71f78ea6c89b29356a131e29e2b1e6035a169ce11a4cd12162

05 Affected products

VendorProductVersionsPlatforms
n/aBIG-IP14.1.4 and 16.0.1.1—

06 References