CVE-2023-43125
BIG-IP APM Clients TunnelCrack vulnerability
BIG-IP APM clients may send IP traffic outside of the VPN tunnel. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated
Attack profile
How easy it is to exploit
- Attack vector
- Adjacent network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
BIG-IP APM Clients TunnelCrack vulnerability
BIG-IP APM clients may send IP traffic outside of the VPN tunnel. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated
- Record
CVE-2023-43125- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N - Weakness
- CWE-319
- Updated
- 2026-11-02
EUVDEUVD-2023-47544
BIG-IP APM clients may send IP traffic outside of the VPN tunnel. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated
- Record
EUVD-2023-47544- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-w439-f952-rj94
BIG-IP APM clients may send IP traffic outside of the VPN tunnel. Note: Software versions which...
BIG-IP APM clients may send IP traffic outside of the VPN tunnel. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated
- Record
GHSA-w439-f952-rj94- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N - Weakness
- CWE-319
- Updated
- 2026-11-02
NVD
BIG-IP APM clients may send IP traffic outside of the VPN tunnel. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated
- Record
CVE-2023-43125- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N - CVSS 3.1
- 8.2 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N - Weakness
- CWE-319
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-43125 is a medium vulnerability (CVSS 6.8) in F5 Big-ip Edge Client, published September 27, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.28%, the 20th percentile. No source names a fixed version.