The automatic signature update functionality in the (1) Phone Home feature in F5 BIG-IP LTM, AAM, AFM, Analytics, APM, GTM, and Link Control
The automatic signature update functionality in the (1) Phone Home feature in F5 BIG-IP LTM, AAM, AFM, Analytics, APM, GTM, and Link Controller 11.5.0 through 11.6.0, ASM 10.0.0 through 11.6.0, and PEM 11.3.0 through 11.6.0 and the (2) Call Home feature in ASM 10.0.0 through 11.6.0 and PEM 11.3.0 through 11.6.0 does not properly validate server SSL certificates, which allows remote attackers to conduct man-in-the-middle attacks via a crafted certificate.
- Published
- May 12, 2015
- Updated
- Jun 16, 2026
- EPSS
- 0.8% · 55th percentile
- CWE
- —
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Report tools
Action score
17
Monitor
Low priority for now.
- CVSS
- 17 / 40 · 4.3 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.8%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| f5 | big-ip application acceleration manager | cpe:2.3:a:f5:big-ip_application_acceleration_manager |
| f5 | big-ip policy enforcement manager | cpe:2.3:a:f5:big-ip_policy_enforcement_manager |
| f5 | big-ip policy enforcement manager11.5.1 | cpe:2.3:a:f5:big-ip_policy_enforcement_manager11.5.1 |
| f5 | big-ip global traffic manager | cpe:2.3:a:f5:big-ip_global_traffic_manager |
| f5 | big-ip advanced firewall manager | cpe:2.3:a:f5:big-ip_advanced_firewall_manager |
| f5 | big-ip local traffic manager | cpe:2.3:a:f5:big-ip_local_traffic_manager |
| f5 | big-ip application security manager | cpe:2.3:a:f5:big-ip_application_security_manager |
| f5 | big-ip link controller | cpe:2.3:a:f5:big-ip_link_controller |
| f5 | big-ip access policy manager | cpe:2.3:a:f5:big-ip_access_policy_manager |
| f5 | big-ip analytics | cpe:2.3:a:f5:big-ip_analytics |
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 manager11.6.0
- 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 manager11.6.0
- f5 big-ip analytics11.5.0
- f5 big-ip analytics11.5.1
- f5 big-ip analytics11.5.2
- f5 big-ip analytics11.6.0
- f5 big-ip application acceleration manager11.5.0
- f5 big-ip application acceleration manager11.5.1
- f5 big-ip application acceleration manager11.5.2
- f5 big-ip application acceleration manager11.6.0
- f5 big-ip application security manager11.5.0
- f5 big-ip application security manager11.5.1
- f5 big-ip application security manager11.5.2
- f5 big-ip application security manager11.6.0
Same product
f5: all recordsOther highest-scoring records for the same primary product.
- CVE-2018-15331On BIG-IP AAM 13.0.0 or 12.1.0-12.1.3.7, the dcdb_convert utility used by BIG-IP AAM fails to drop group permissions when executing helper s31Monitor
- CVE-2018-5513On F5 BIG-IP 13.1.0-13.1.0.3, 13.0.0, 12.1.0-12.1.3.3, 11.6.1-11.6.3.1, 11.5.1-11.5.5, or 11.2.1, a malformed TLS handshake causes TMM to cr31Monitor
- CVE-2016-5736The default configuration of the IPsec IKE peer listener in F5 BIG-IP LTM, Analytics, APM, ASM, and Link Controller 11.2.1 before HF16, 11.431Monitor
- CVE-2016-4545Virtual servers in F5 BIG-IP 11.5.4, when SSL profiles are enabled, allow remote attackers to cause a denial of service (resource consumptio31Monitor
- CVE-2018-5523On F5 BIG-IP 13.1.0-13.1.0.3, 13.0.0, 12.1.0-12.1.3.1, 11.6.1-11.6.3.1, 11.5.1-11.5.5, or 11.2.1 and Enterprise Manager 3.1.1, when authenti29Monitor
- CVE-2018-15315On F5 BIG-IP 13.0.0-13.1.1.1 and 12.1.0-12.1.3.6, there is a reflected Cross Site Scripting (XSS) vulnerability in an undisclosed Configurat24Monitor
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.
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.
Credits
All researchersFinders, 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
If successful
- Confidentiality
- none
- Integrity
- P · data or configuration can be modified
- Availability
- none
- Attack complexity
- M
- Confidentiality impact
- None
- Integrity impact
- P
- Availability impact
- None
Weakness class (CWE)
—
CVSS vector
AV:N/AC:M/Au:N/C:N/I:P/A:N
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
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 helpChange 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.