Vulnerability · Published Dec 7, 2021 · Assigned by hackerone
CVE-2021-42127
Critical 9.8
In plain English
A critical-severity unsafe deserialization in Ivanti Avalanche. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 65.8% (higher than 99.3% of all known vulnerabilities).
Severity (CVSS NVD)9.8Critical
Exploit odds (30 days)65.8%top 0.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | Ivanti Avalanche | 6.3.3 |
Weakness: CWE-502