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CVE Record

CVE-2018-5535: On F5 BIG-IP 14.0.0, 13.0.0-13.1.0, 12.1.0-12.1.3, or 11.5.1-11.6.3 specifically crafted HTTP responses, wh...

On F5 BIG-IP 14.0.0, 13.0.0-13.1.0, 12.1.0-12.1.3, or 11.5.1-11.6.3 specifically crafted HTTP responses, when processed by a Virtual Server with an associated QoE profile that has Video enabled, may cause TMM to incorrectly buffer response data causing the TMM to restart resulting in a Denial of Service.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

This flaw can crash the F5 BIG-IP traffic management process and interrupt services when a vulnerable virtual server handles specially crafted HTTP responses. The exposure is configuration-specific: the virtual server must use a QoE profile with Video enabled. The available sources do not provide CVSS scoring or evidence of active exploitation. Exposure is most likely on internet-facing or high-traffic BIG-IP virtual servers running the listed versions and configured with QoE profiles that have Video enabled. BIG-IP deployments without that profile condition are not shown as affected by the provided source bundle. Handle this as a targeted availability risk for F5-managed applications. Prioritize systems supporting customer-facing or revenue-critical services, especially where the vulnerable QoE Video profile condition exists. Urgency is lower than confirmed exploited remote code execution, but outages at the BIG-IP layer can have broad business impact. Mitigation focus: Review F5 advisory K19634255 for vendor-approved fixes or mitigations.; Inventory BIG-IP versions against the affected version ranges.; Identify virtual servers with QoE profiles where Video is enabled..

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-2018-5535 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
2Source 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
F5 Networks, Inc.BIG-IP (LTM, AAM, AFM, Analytics, APM, ASM, DNS, Edge Gateway, FPS, GTM, Link Controller, PEM, WebAccelerator)14.0.0, 13.0.0-13.1.0, 12.1.0-12.1.3, 11.5.1-11.6.3Listed
Weakness

CWE details

No CWE listed

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