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CVE-2016-5021· NVD / CVE Program· CNA mitre

The iControl REST service in F5 BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, Link Controller, and PEM 11.5.x before 11.5.4, 11.6.x before 11.6

The iControl REST service in F5 BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, Link Controller, and PEM 11.5.x before 11.5.4, 11.6.x before 11.6.1, and 12.x before 12.0.0 HF3; BIG-IP DNS 12.x before 12.0.0 HF3; BIG-IP GTM 11.5.x before 11.5.4 and 11.6.x before 11.6.1; BIG-IQ Cloud and Security 4.0.0 through 4.5.0; BIG-IQ Device 4.2.0 through 4.5.0; BIG-IQ ADC 4.5.0; BIG-IQ Centralized Management 4.6.0; and BIG-IQ Cloud and Orchestration 1.0.0 allows remote authenticated administrators to obtain sensitive information via unspecified vectors.

MediumCVSS 4.9 · v3.0—No exploit No fix recorded
Published
Jun 24, 2016
Updated
Jun 16, 2026
EPSS
1.2% · 68th percentile
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Report tools

JSON

Action score

19

Monitor

Low priority for now.

CVSS
19 / 40 · 4.9 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 1.2%

Affected systems

VendorProduct
f5big-iq application delivery controller
f5big-iq cloud and orchestration
f5big-ip application acceleration manager
f5big-ip access policy manager
f5big-ip local traffic manager
f5big-ip global traffic manager
f5big-iq security
f5big-iq cloud
f5big-ip application security manager
f5big-iq centralized management
f5big-ip domain name system
f5big-ip analytics

and 4 more

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • f5 big-ip access policy manager11.5.0
  • f5 big-ip access policy manager11.5.1
  • f5 big-ip access policy manager11.5.2
  • f5 big-ip access policy manager11.5.3
  • f5 big-ip access policy manager11.6.0
  • f5 big-ip access policy manager12.0.0
  • f5 big-ip advanced firewall manager11.5.0
  • f5 big-ip advanced firewall manager11.5.1
  • f5 big-ip advanced firewall manager11.5.2
  • f5 big-ip advanced firewall manager11.5.3
  • f5 big-ip advanced firewall manager11.6.0
  • f5 big-ip advanced firewall manager12.0.0
  • f5 big-ip analytics11.5.0
  • f5 big-ip analytics11.5.1
  • f5 big-ip analytics11.5.2
  • f5 big-ip analytics11.5.3
  • f5 big-ip analytics11.6.0
  • f5 big-ip analytics12.0.0
  • f5 big-ip application acceleration manager11.5.0
  • f5 big-ip application acceleration manager11.5.1

Same product

f5: all records

Other highest-scoring records for the same primary product.

  • CVE-2015-5516Memory leak in the last hop kernel module in F5 BIG-IP LTM, GTM, and Link Controller 10.1.x, 10.2.x before 10.2.4 HF13, 11.x before 11.2.1 H
    31Monitor
  • CVE-2015-7393dcoep in BIG-IP LTM, Analytics, APM, ASM, and Link Controller 11.2.0 through 11.6.0 and 12.0.0 before 12.0.0 HF1, BIG-IP AAM 11.4.0 through
    29Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • Administrator privileges are required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
none
Availability
none
Attack vector
Network
Attack complexity
Low
Privileges required
High
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
None
Availability impact
None

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

nvd-primary

Root cause

The extension requests broader permissions than its function needs and sends the data it collects out for purposes beyond its stated function.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

json
{  "permissions": ["tabs", "<all_urls>"],  "background": { "service_worker": "analytics.js" }}

Fixed

json
{  "permissions": ["activeTab"],  "host_permissions": ["https://yildiz.example/*"]}

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

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