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CVE Record

CVE-2019-6623: On BIG-IP 14.1.0-14.1.0.5, 14.0.0-14.0.0.4, 13.0.0-13.1.1.4, and 12.1.0-12.1.4, undisclosed traffic sent to...

On BIG-IP 14.1.0-14.1.0.5, 14.0.0-14.0.0.4, 13.0.0-13.1.1.4, and 12.1.0-12.1.4, undisclosed traffic sent to BIG-IP iSession virtual server may cause the Traffic Management Microkernel (TMM) to restart, resulting in a Denial-of-Service (DoS).

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

Certain F5 BIG-IP versions can be disrupted when unspecified traffic reaches an iSession virtual server. The failure causes TMM, the traffic-processing component, to restart, creating a denial-of-service condition. The source bundle does not provide CVSS scoring or confirm active exploitation. Exposure is most likely where affected BIG-IP versions run iSession virtual servers that can receive traffic from untrusted or broad network segments. Confirm exact version and feature usage before prioritizing. Prioritize based on business dependence on affected BIG-IP systems. This can interrupt traffic handling, but the bundle provides no evidence of active exploitation or severity scoring. Address exposed production appliances first. Mitigation focus: Review F5 advisory K72335002 for vendor-confirmed fixes or mitigations.; Inventory BIG-IP versions and identify affected 12.1, 13.x, and 14.x deployments.; Confirm whether iSession virtual servers are configured and reachable..

Prepared

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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CVE-2019-6623 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
F5BIG-IPBIG-IP 14.1.0-14.1.0.5, 14.0.0-14.0.0.4, 13.0.0-13.1.1.4, 12.1.0-12.1.4Listed
Weakness

CWE details

No CWE listed

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