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CVE Record

CVE-2017-6155: On F5 BIG-IP 13.0.0, 12.0.0-12.1.3.1, 11.6.0-11.6.2, 11.4.1-11.5.5, or 11.2.1, malformed SPDY or HTTP/2 req...

On F5 BIG-IP 13.0.0, 12.0.0-12.1.3.1, 11.6.0-11.6.2, 11.4.1-11.5.5, or 11.2.1, malformed SPDY or HTTP/2 requests may result in a disruption of service to TMM. Data plane is only exposed when a SPDY or HTTP/2 profile is attached to a virtual server. There is no control plane exposure.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This CVE can let malformed SPDY or HTTP/2 traffic disrupt F5 BIG-IP traffic processing. The issue affects specific BIG-IP releases and only matters when a SPDY or HTTP/2 profile is attached to a virtual server. The management/control plane is not exposed according to the source bundle.

Executive priority

Prioritize review where BIG-IP fronts critical or public services using HTTP/2 or SPDY. Business impact is potential traffic disruption, not stated data compromise. Urgency is lower without KEV or active exploitation evidence, but exposed production load balancers should be addressed promptly.

Technical view

CVE-2017-6155 is a BIG-IP data-plane denial-of-service condition affecting TMM. Exposure requires an affected BIG-IP version and a virtual server using a SPDY or HTTP/2 profile. The supplied sources do not provide CVSS, CWE, proof of exploitation, or detailed remediation text.

Likely exposure

Organizations using affected BIG-IP versions with SPDY or HTTP/2 profiles on virtual servers are the likely exposed population. BIG-IP systems without those profiles are not described as data-plane exposed by the source bundle.

Exploitation context

The source bundle describes malformed SPDY or HTTP/2 requests causing TMM service disruption. It does not cite active exploitation, public exploit availability, or CISA KEV listing. Treat exploitation status as unconfirmed.

Researcher notes

The provided record lacks CVSS, CWE, and advisory details beyond the exposure condition. Key validation is configuration-dependent: affected version plus SPDY or HTTP/2 profile on a virtual server. Avoid assuming broader BIG-IP module exposure beyond the listed products and versions.

Mitigation direction

  • Check F5 advisory K10930474 for vendor-approved fixes or workarounds.
  • Inventory BIG-IP versions against the affected release ranges.
  • Remove unused SPDY or HTTP/2 profiles where business requirements allow.
  • Prioritize remediation for internet-facing affected virtual servers.
  • Monitor vendor guidance before making protocol or upgrade changes.

Validation and detection

  • Identify BIG-IP devices running the listed affected versions.
  • Review virtual server profiles for SPDY or HTTP/2 attachment.
  • Confirm whether exposed virtual servers are internet-facing or partner-facing.
  • Verify remediation status against F5 advisory K10930474.
  • Document that control-plane exposure is not indicated by the source bundle.
Prepared
Confidence
medium
Sources
3

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

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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CVE-2017-6155 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, APM, ASM, Edge Gateway, Link Controller, PEM, PSM, WebAccelerator, WebSafe)13.0.0, 12.0.0-12.1.3.1, 11.6.0-11.6.2, 11.4.1-11.5.5, 11.2.1Listed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.