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CVE Vulnerability Details :
CVE-2026-40629
PUBLISHED
More InfoOfficial Page
Assigner-f5
Assigner Org ID-9dacffd4-cb11-413f-8451-fbbfd4ddc0ab
View Known Exploited Vulnerability (KEV) details
Published At-13 May, 2026 | 14:12
Updated At-13 May, 2026 | 16:14
Rejected At-
▼CVE Numbering Authority (CNA)
BIG-IP SSL/TLS vulnerability

When SSL profiles are configured on a virtual server, undisclosed traffic can cause the virtual server to stop processing new client connections.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Affected Products
Vendor
F5, Inc.F5
Product
BIG-IP
Modules
  • All Modules
Default Status
unknown
Versions
Affected
  • From 17.5.0 before 17.5.1.4 (custom)
  • From 17.1.0 before 17.1.3.1 (custom)
  • From 16.1.0 before * (custom)
Unaffected
  • From 21.0.0 before * (custom)
Vendor
F5, Inc.F5
Product
BIG-IP Next SPK
Default Status
unknown
Versions
Affected
  • From 2.0.0 before 2.0.3 (custom)
  • From 1.7.0 before 1.7.16 (custom)
Vendor
F5, Inc.F5
Product
BIG-IP Next CNF
Default Status
unknown
Versions
Affected
  • From 2.0.0 before 2.0.3 (custom)
  • From 1.1.0 before 1.4.1 (custom)
Vendor
F5, Inc.F5
Product
BIG-IP Next for Kubernetes
Default Status
unknown
Versions
Affected
  • From 2.0.0 before 2.1.1 (custom)
Problem Types
TypeCWE IDDescription
CWECWE-770CWE-770 Allocation of Resources Without Limits or Throttling
Type: CWE
CWE ID: CWE-770
Description: CWE-770 Allocation of Resources Without Limits or Throttling
Metrics
VersionBase scoreBase severityVector
3.17.5HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
4.08.7HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Version: 3.1
Base score: 7.5
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Version: 4.0
Base score: 8.7
Base severity: HIGH
Vector:
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

finder
F5
Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://my.f5.com/manage/s/article/K000158978
vendor-advisory
patch
Hyperlink: https://my.f5.com/manage/s/article/K000158978
Resource:
vendor-advisory
patch
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
Details not found