CVE-2016-9257: F5 Networks, Inc. BIG-IP APM vulnerability

CVE-2016-9257: In F5 BIG-IP APM 12.0.0 through 12.1.2, non-authenticated users may be able to inject JavaScript into a req...

In F5 BIG-IP APM 12.0.0 through 12.1.2, non-authenticated users may be able to inject JavaScript into a request that will then be rendered and executed in the context of the Administrative user when the Administrative user is viewing the Access System Logs, allowing the non-authenticated user to carry out a Cross Site Scripting (XSS) attack against the Administrative user.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 02:42 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2016-9257 affects F5 BIG-IP APM 12.0.0 through 12.1.2. An unauthenticated person may inject JavaScript into a request that later runs in an administrator's browser when the administrator views Access System Logs. The bundle does not provide CVSS, active exploitation evidence, or fixed-version details. Exposure is limited to organizations running F5 BIG-IP APM versions 12.0.0 through 12.1.2, especially where unauthenticated requests can reach APM services and administrators review Access System Logs in a browser. Treat as a targeted administrative-risk issue rather than a confirmed mass-exploitation emergency. Prioritize remediation for internet-facing or high-trust BIG-IP APM deployments, because successful XSS against an administrator can affect control-plane security. Mitigation focus: Check F5 advisory K43523962 for vendor-confirmed fixes or mitigations.; Upgrade or remediate affected BIG-IP APM versions according to F5 guidance.; Restrict administrative interface access to trusted networks and users..

Prepared: Jun 13, 2026, 05:01 UTC (UTC+00:00)

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

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: May 9, 2017, 15:00 UTC (UTC+00:00)

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

CVE List V5 sourceCVE List V5
https://support.f5.com/csp/article/K43523962CVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

F5 Networks, Inc.BIG-IP APM12.0.0 through 12.1.2Listed

Weakness

CWE details

No CWE listed

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