CVE-2021-42130
A deserialization of untrusted data vulnerability exists in Ivanti Avalanche before 6.3.3 allows...
A deserialization of untrusted data vulnerability exists in Ivanti Avalanche before 6.3.3 allows an attacker with access to the Inforail Service to perform arbitrary code execution.
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
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
A deserialization of untrusted data vulnerability exists in Ivanti Avalanche before 6.3.3 allows an attacker with access to the Inforail Service to perform arbitrary code execution.
- Record
CVE-2021-42130- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.5 Medium
AV:N/AC:L/Au:S/C:P/I:P/A:P - Weakness
- CWE-502
- Updated
- 2026-11-02
CVE List No score
A deserialization of untrusted data vulnerability exists in Ivanti Avalanche before 6.3.3 allows an attacker with access to the Inforail Service to perform arbitrary code execution.
- Record
CVE-2021-42130- Weakness
- CWE-502
- Updated
- 2026-11-02
EUVDEUVD-2021-29115 No score
A deserialization of untrusted data vulnerability exists in Ivanti Avalanche before 6.3.3 allows an attacker with access to the Inforail Service to perform arbitrary code execution.
- Record
EUVD-2021-29115- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-qhvf-58cr-6vq3 No score
A deserialization of untrusted data vulnerability exists in Ivanti Avalanche before 6.3.3 allows...
A deserialization of untrusted data vulnerability exists in Ivanti Avalanche before 6.3.3 allows an attacker with access to the Inforail Service to perform arbitrary code execution.
- Record
GHSA-qhvf-58cr-6vq3- Weakness
- CWE-502
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-42130 is a high vulnerability (CVSS 8.8) in Ivanti Avalanche, published December 7, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 62.2%, the 99th percentile. No source names a fixed version.