High severity7.5NVD Advisory· Published Jul 2, 2019· Updated Jun 17, 2026

CVE-2019-6623

Description

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).

Affected products

F5, Inc./Big IPllm-fuzzy2 versions
14.1.0-14.1.0.5, 14.0.0-14.0.0.4, 13.0.0-13.1.1.4, 12.1.0-12.1.4+ 1 more
- (no CPE)range: 14.1.0-14.1.0.5, 14.0.0-14.0.0.4, 13.0.0-13.1.1.4, 12.1.0-12.1.4
- (no CPE)range: BIG-IP 14.1.0-14.1.0.5

Patches

Vulnerability mechanics

References

www.securityfocus.com/bid/109048nvdBroken LinkThird Party AdvisoryVDB Entry
support.f5.com/csp/article/K72335002nvdVendor Advisory
support.f5.com/csp/article/K72335002nvd

News mentions

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cvss	0.488
epss	0.002
exploit	0.000
kev	0.000
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ransomware	0.000