CVE-2018-5548
On BIG-IP APM 11.6.0-11.6.3, an insecure AES ECB mode is used for orig_uri parameter in an undisclosed /vdesk link of APM virtual server configured with an access profile, allowing a malicious user to build a redirect URI value using different blocks of…
Does this matter?
Lower severity and a low EPSS score (1.44%). Track it; it rarely justifies an emergency change on its own.
Description
On BIG-IP APM 11.6.0-11.6.3, an insecure AES ECB mode is used for orig_uri parameter in an undisclosed /vdesk link of APM virtual server configured with an access profile, allowing a malicious user to build a redirect URI value using different blocks of cipher texts.
- CVSS 3.0
- 6.1 MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 1.44% probability · 73th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-601
- Affected
- f5/big-ip access policy manager
- Source
- f5sirt@f5.com
EPSS 1.4% 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://sbudella.altervista.org/blog/20180911-cve-2018-5548.htmlExploit, Technical Description, Third Party Advisory
- http://www.securityfocus.com/bid/105353Third Party Advisory, VDB Entry
- https://support.f5.com/csp/article/K66171422Vendor Advisory
- http://sbudella.altervista.org/blog/20180911-cve-2018-5548.htmlExploit, Technical Description, Third Party Advisory
- http://www.securityfocus.com/bid/105353Third Party Advisory, VDB Entry
- https://support.f5.com/csp/article/K66171422Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.