CVE-2018-5518: f5 networks, inc. big-ip (ltm, aam, afm, analytics, apm, asm, dns, edge gateway, gtm, link controller, pem, webaccelerator, websafe)
Vulnerability summary
CVE-2018-5518 is a medium (CVSS 5.4) 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 0.40% chance of exploitation in the next 30 days, higher than 33.1% of scored vulnerabilities.
Timeline
- 02-05-2018PublishedVulnerability first disclosed.
- 16-09-2024Last modifiedVulnerability information updated.
Description
On F5 BIG-IP 13.0.0-13.1.0.5 or 12.0.0-12.1.3.3, malicious root users with access to a VCMP guest can cause a disruption of service on adjacent VCMP guests running on the same host. Exploiting this vulnerability causes the vCMPd process on the adjacent VCMP guest to restart and produce a core file. This issue is only exploitable on a VCMP guest which is operating in "host-only" or "bridged" mode. VCMP guests which are "isolated" are not impacted by this issue and do not provide mechanism to exploit the vulnerability. Guests which are deployed in "Appliance Mode" may be impacted however the exploit is not possible from an Appliance Mode guest. To exploit this vulnerability root access on a guest system deployed as "host-only" or "bridged" mode is required.
CVSS metrics
2 scores · 1 source · 2 versionsEPSS trend
Probability
0.40%
Chance of exploitation in the next 30 days
Percentile
33%
Versus all other CVEs
30-day change
-0.01 pp
From 0.41% 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 causeNo weakness data has been published for this record.
Affected systems
F513 products
- big-ip_access_policy_manager≥ 12.0.0, ≤ 12.1.3 | ≥ 13.0.0, ≤ 13.1.0
- big-ip_advanced_firewall_manager≥ 12.0.0, ≤ 12.1.3 | ≥ 13.0.0, ≤ 13.1.0
- big-ip_analytics≥ 12.0.0, ≤ 12.1.3 | ≥ 13.0.0, ≤ 13.1.0
- big-ip_application_acceleration_manager≥ 12.0.0, ≤ 12.1.3 | ≥ 13.0.0, ≤ 13.1.0
- big-ip_application_security_manager≥ 12.0.0, ≤ 12.1.3 | ≥ 13.0.0, ≤ 13.1.0
F5 networks, inc.1 product
- big-ip (ltm, aam, afm, analytics, apm, asm, dns, edge gateway, gtm, link controller, pem, webaccelerator, websafe)13.0.0-13.1.0.5 | 12.0.0-12.1.3.3
2 vendors · 14 products