CVE-2021-42127
9.8
CRITICAL · CVSS 3.1 · EPSS 65.8% (pctl 99)
Patch early
EPSS 65.8% — above the 10% action threshold.
Description
A deserialization of untrusted data vulnerability exists in Ivanti Avalanche before 6.3.3 using Inforail Service allows arbitrary code execution via Data Repository Service.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 65.83% — more likely to be exploited than 99% of all CVEs |
| Weakness | CWE-502 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2021-12-07 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| ivanti | avalanche |
References
→ the Explorer · watch your stack · NVD