01 Record
CVE-2018-5501
In some circumstances, on F5 BIG-IP systems running 13.0.0, 12.1.0 - 12.1.3.1, any 11.6.x or 11.5.x release, or 11.2.1, TCP DNS profile allows excessive buffering due to lack of flow control.
UnratedPUBLISHEDCNA: f5
CNA base scoreUnratedNo CNA CVSS vector
02 Description
In some circumstances, on F5 BIG-IP systems running 13.0.0, 12.1.0 - 12.1.3.1, any 11.6.x or 11.5.x release, or 11.2.1, TCP DNS profile allows excessive buffering due to lack of flow control.
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 1.33% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 70.8% of scored records. A rank, not a probability.
- NVD base score
- 5.9 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2018-03-01 16:00Z8 YR AGO
- Last updated
- 2024-09-17 02:37Z2 YR AGO
- Reserved
- 2018-01-12
- Assigning CNA
- f5
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-400Uncontrolled Resource ConsumptionClass
- Data version
- 5.1
- Document digest
- 6b4b2276b86a4b70804c1ede2a286dc31fbff8ac45c043b43de038ca0ff89418
05 Affected products
VendorProductVersionsPlatforms
F5 Networks, Inc.BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, Edge Gateway, GTM, Link Controller, PEM, WebAccelerator, WebSafe13.0.0, 12.1.0 - 12.1.3.1, 11.6.1 - 11.6.x, 11.5.1 - 11.5.x, 11.2.1—
06 References
- support.f5.comhttps://support.f5.com/csp/article/K44200194
- www.securityfocus.com103211http://www.securityfocus.com/bid/103211