CVE-2020-4399
IBM Verify Gateway (IVG) 1.0.0 and 1.0.1 could allow an authenticated user to send malformed...
IBM Verify Gateway (IVG) 1.0.0 and 1.0.1 could allow an authenticated user to send malformed requests to cause a denial of service against the server. IBM X-Force ID: 179476.
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
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
IBM Verify Gateway (IVG) 1.0.0 and 1.0.1 could allow an authenticated user to send malformed requests to cause a denial of service against the server. IBM X-Force ID: 179476.
- Record
CVE-2020-4399- CVSS 3.0
- 6.5 Medium
CVSS:3.0/A:H/AV:N/PR:L/C:N/I:N/S:U/UI:N/AC:L/RL:O/RC:C/E:U - Updated
- 2026-11-02
EUVDEUVD-2020-25646
IBM Verify Gateway (IVG) 1.0.0 and 1.0.1 could allow an authenticated user to send malformed requests to cause a denial of service against the server. IBM X-Force ID: 179476.
- Record
EUVD-2020-25646- CVSS 3.0
- 6.5 Medium
CVSS:3.0/A:H/AV:N/PR:L/C:N/I:N/S:U/UI:N/AC:L/RL:O/RC:C/E:U - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-4pc7-f2vc-2rv4 No score
IBM Verify Gateway (IVG) 1.0.0 and 1.0.1 could allow an authenticated user to send malformed...
IBM Verify Gateway (IVG) 1.0.0 and 1.0.1 could allow an authenticated user to send malformed requests to cause a denial of service against the server. IBM X-Force ID: 179476.
- Record
GHSA-4pc7-f2vc-2rv4- Updated
- 2026-11-02
NVD
IBM Verify Gateway (IVG) 1.0.0 and 1.0.1 could allow an authenticated user to send malformed requests to cause a denial of service against the server. IBM X-Force ID: 179476.
- Record
CVE-2020-4399- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 4.0 Medium
AV:N/AC:L/Au:S/C:N/I:N/A:P - 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-2020-4399 is a medium vulnerability (CVSS 6.5) in Ibm Verify Gateway (ivg), published July 22, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.14%, the 66th percentile. No source names a fixed version.