CVE-2023-40720
An authorization bypass through user-controlled key vulnerability [CWE-639] in...
An authorization bypass through user-controlled key vulnerability [CWE-639] in FortiVoiceEntreprise version 7.0.0 through 7.0.1 and before 6.4.8 allows an authenticated attacker to read the SIP configuration of other users via crafted HTTP or HTTPS requests.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
An authorization bypass through user-controlled key vulnerability [CWE-639] in FortiVoiceEntreprise version 7.0.0 through 7.0.1 and before 6.4.8 allows an authenticated attacker to read the SIP configuration of other users via crafted HTTP or HTTPS requests.
- Record
CVE-2023-40720- CVSS 3.1
- 6.7 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L/E:P/RL:X/RC:C - Weakness
- CWE-639
- Updated
- 2026-11-02
EUVDEUVD-2023-45274
An authorization bypass through user-controlled key vulnerability [CWE-639] in FortiVoiceEntreprise version 7.0.0 through 7.0.1 and before 6.4.8 allows an authenticated attacker to read the SIP configuration of other users via crafted HTTP or HTTPS requests.
- Record
EUVD-2023-45274- CVSS 3.1
- 6.7 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L/E:P/RL:X/RC:C - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-wr9w-6wcp-7m3p
An authorization bypass through user-controlled key vulnerability [CWE-639] in...
An authorization bypass through user-controlled key vulnerability [CWE-639] in FortiVoiceEntreprise version 7.0.0 through 7.0.1 and before 6.4.8 allows an authenticated attacker to read the SIP configuration of other users via crafted HTTP or HTTPS requests.
- Record
GHSA-wr9w-6wcp-7m3p- CVSS 3.1
- 7.1 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L - Weakness
- CWE-639
- Updated
- 2026-11-02
NVD
An authorization bypass through user-controlled key vulnerability [CWE-639] in FortiVoiceEntreprise version 7.0.0 through 7.0.1 and before 6.4.8 allows an authenticated attacker to read the SIP configuration of other users via crafted HTTP or HTTPS requests.
- Record
CVE-2023-40720- CVSS 3.1
- 7.1 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L - Weakness
- CWE-639
- 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-2023-40720 is a medium vulnerability (CVSS 6.7) in Fortinet Fortivoice, published May 14, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.85%, the 58th percentile. No source names a fixed version.