VulnerabilityModified

CVE-2021-42127

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.

CRITICAL 9.8EPSS 65.8%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 65.8%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.

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.

CVSS 3.1: 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 65.83% probability · 99th percentile
CISA KEV: Not listed
Weakness: CWE-502
Affected: ivanti/avalanche
Source: support@hackerone.com

References

https://forums.ivanti.com/s/article/Security-Alert-CVE-s-Addressed-in-Avalanche-6-3-3Vendor Advisory
https://forums.ivanti.com/s/article/Security-Alert-CVE-s-Addressed-in-Avalanche-6-3-3Vendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.