CVE-2018-5517: f5 networks, inc. big-ip (ltm, aam, afm, analytics, apm, asm, dns, edge gateway, gtm, link controller, pem, webaccelerator, websafe) Improper Input Validation
Vulnerability summary
CVE-2018-5517 is a high (CVSS 7.5) Improper Input 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 1.68% chance of exploitation in the next 30 days, higher than 76.5% of scored vulnerabilities.
Timeline
- 02-05-2018PublishedVulnerability first disclosed.
- 17-09-2024Last modifiedVulnerability information updated.
Description
On F5 BIG-IP 13.1.0-13.1.0.5, malformed TCP packets sent to a self IP address or a FastL4 virtual server may cause an interruption of service. The control plane is not exposed to this issue. This issue impacts the data plane virtual servers and self IPs.
CVSS metrics
2 scores · 1 source · 2 versionsEPSS trend
Probability
1.68%
Chance of exploitation in the next 30 days
Percentile
77%
Versus all other CVEs
30-day change
-0.03 pp
From 1.71% 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≥ 13.1.0, ≤ 13.1.0.5
- big-ip_advanced_firewall_manager≥ 13.1.0, ≤ 13.1.0.5
- big-ip_analytics≥ 13.1.0, ≤ 13.1.0.5
- big-ip_application_acceleration_manager≥ 13.1.0, ≤ 13.1.0.5
- big-ip_application_security_manager≥ 13.1.0, ≤ 13.1.0.5
F5 networks, inc.1 product
2 vendors · 14 products