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CRITICAL

CVE-2021-27335

CVSS v3

9.8

CRITICAL

EPSS Score

2.0 %

exploit probability

CISA KEV

No

known exploited

Exploitation

SSVC status

Description

KollectApps before 4.8.16c is affected by insecure Java deserialization, leading to Remote Code Execution via a ysoserial.payloads.CommonsCollections parameter.

Technical details

Published
2021-02-18

Frequently asked questions

What is CVE-2021-27335?

KollectApps before 4.8.16c is affected by insecure Java deserialization, leading to Remote Code Execution via a ysoserial.payloads.CommonsCollections parameter.

Is CVE-2021-27335 actively exploited?

Active exploitation of CVE-2021-27335 has not been confirmed. The EPSS score is 2.0%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-27335?

CVE-2021-27335 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2021-27335 affecting your environment?

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