CVE-2018-5502: f5 networks, inc. big-ip (ltm, aam, afm, analytics, apm, asm, dns, edge gateway, gtm, link controller, pem, webaccelerator, websafe) Improper Certificate Validation
Vulnerability summary
CVE-2018-5502 is a high (CVSS 7.5) Improper Certificate Validation vulnerability in f5 networks, inc. big-ip (ltm, aam, afm, analytics, apm, asm, dns, edge gateway, gtm, link controller, pem, webaccelerator, websafe). EPSS estimates a 1.32% chance of exploitation in the next 30 days, higher than 70.4% of scored vulnerabilities.
Timeline
- 22-03-2018PublishedVulnerability first disclosed.
- 17-09-2024Last modifiedVulnerability information updated.
Description
On F5 BIG-IP versions 13.0.0 - 13.1.0.3, attackers may be able to disrupt services on the BIG-IP system with maliciously crafted client certificate. This vulnerability affects virtual servers associated with Client SSL profile which enables the use of client certificate authentication. Client certificate authentication is not enabled by default in Client SSL profile. There is no control plane exposure.
CVSS metrics
2 scores · 1 source · 2 versionsEPSS trend
Probability
1.32%
Chance of exploitation in the next 30 days
Percentile
70%
Versus all other CVEs
30-day change
0.00 pp
From 1.32% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
F513 products
- big-ip_access_policy_manager≥ 13.0.0, < 13.1.0.4
- big-ip_advanced_firewall_manager≥ 13.0.0, < 13.1.0.4
- big-ip_analytics≥ 13.0.0, < 13.1.0.4
- big-ip_application_acceleration_manager≥ 13.0.0, < 13.1.0.4
- big-ip_application_security_manager≥ 13.0.0, < 13.1.0.4
F5 networks, inc.1 product
2 vendors · 14 products