CVE-2018-5545
On F5 WebSafe Alert Server 1.0.0-4.2.6, a malicious, authenticated user can execute code on the alert server by using a maliciously crafted payload.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.39%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
On F5 WebSafe Alert Server 1.0.0-4.2.6, a malicious, authenticated user can execute code on the alert server by using a maliciously crafted payload.
- CVSS 3.0
- 8.8 HIGHCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.39% probability · 84th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- f5/websafe alert server
- Source
- f5sirt@f5.com
EPSS 2.4% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.securityfocus.com/bid/105344Third Party Advisory, VDB Entry
- https://support.f5.com/csp/article/K20226900Vendor Advisory
- http://www.securityfocus.com/bid/105344Third Party Advisory, VDB Entry
- https://support.f5.com/csp/article/K20226900Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.