CVE-2021-42127

CRITICALCVSS 9.8/10EPSS 68.03%

Last modified

CVE-2021-42127 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 68.03% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
68.03%

99.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
IvantiAvalanche< 6.3.3

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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.
How severe is CVE-2021-42127?
CVE-2021-42127 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 68.03% probability of exploitation in the next 30 days.
How do I fix CVE-2021-42127?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-42127?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST