Home/CVE/When TCP Verified Accept is enabled on a TCP profile that is configured on a Virtual Server, undisclosed requests can ca
CVE

CVE-2023-40542

When TCP Verified Accept is enabled on a TCP profile that is configured on a Virtual Server, undisclosed requests can ca

When TCP Verified Accept is enabled on a TCP profile that is configured on a Virtual Server, undisclosed requests can cause an increase in memory resource utilization. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

HIGH · CVSS 7.5 EPSS 0.00576
Schedule remediation
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-770Allocation of Resources Without Limits or Throttling
CWE-770Allocation of Resources Without Limits or Throttling
▤

Affected Products & Versions

60
f5 big-ip access policy manager>= 13.1.0 and <= 13.1.5
f5 big-ip access policy manager>= 14.1.0 and <= 14.1.5
f5 big-ip access policy manager>= 15.1.0 and < 15.1.9
f5 big-ip access policy manager>= 16.1.0 and < 16.1.4
f5 big-ip advanced firewall manager>= 13.1.0 and <= 13.1.5
f5 big-ip advanced firewall manager>= 14.1.0 and <= 14.1.5
f5 big-ip advanced firewall manager>= 15.1.0 and < 15.1.9
f5 big-ip advanced firewall manager>= 16.1.0 and < 16.1.4
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · f5sirt@f5.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD10 Oct 2023 · 01:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
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References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://my.f5.com/manage/s/article/K000134652Vendor Advisory
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