Which products and versions are affected by CVE-2021-42125?

Affected: Avalanche (Ivanti); Ivanti Avalance versions >= 6.3.3. The full list is in the CVE brief.

Is CVE-2021-42125 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2021-42125 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2021-42125?

No public exploit code is known.

Is there a fix for CVE-2021-42125?

Fixed versions are available, including Avalanche 6.3.3.

How urgently should CVE-2021-42125 be patched?

Brandefense priority: patch immediately, because it is very likely to be exploited soon.

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Vulnerability Intelligence

CVE-2021-42125

High

An unrestricted file upload vulnerability exists in Ivanti Avalanche before 6.3.3 allows an attacker with access to the Inforail Service to write dangerous files.

Published Dec 7, 2021 · Updated Nov 21, 2024

Key Facts

Patch immediately

CVE-2021-42125 is a high-severity vulnerability (CVSS 8.8 v3.1) affecting Avalanche (Ivanti), Ivanti Avalance.
It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
EPSS estimates a 82% probability of exploitation in the next 30 days.
Fixed versions are available, including Avalanche 6.3.3.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

CVSS v3.1

8.8

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

EPSS (30-day exploit likelihood)

82%

Higher than 99.6% of all scored CVEs

Exploited in the wild

No known

Not in a known-exploited catalog

Public exploit code

None known

Get the full CVE-2021-42125 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

An unrestricted file upload vulnerability exists in Ivanti Avalanche before 6.3.3 allows an attacker with access to the Inforail Service to write dangerous files.

Affected Products

2 affected entries in total

Product	Affected versions	Fixed in
AvalancheIvanti	See advisory	6.3.3
Ivanti Avalance	>= 6.3.3	n/a

Patched Releases

Avalanche

6.3.3

Timeline

Publicly disclosed
Dec 7, 2021
Last updated
Nov 21, 2024

Weakness Type

CWE-434 Unrestricted Upload of File with Dangerous Type
CWE-502 Deserialization of Untrusted Data

References

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

FAQ

Common Questions.

An unrestricted file upload vulnerability exists in Ivanti Avalanche before 6.3.3 allows an attacker with access to the Inforail Service to write dangerous files.
Affected: Avalanche (Ivanti); Ivanti Avalance versions >= 6.3.3. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including Avalanche 6.3.3.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

Is CVE-2021-42125 Running On Your Attack Surface?

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