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CVE-2017-20189

In Clojure before 1.9.0, classes can be used to construct a serialized object that executes arbitrary code upon deserialization. This is…

Critical9.8EPSS 1.3%
Published
Updated
Reserved
Assigned by
mitre

Description

In Clojure before 1.9.0, classes can be used to construct a serialized object that executes arbitrary code upon deserialization. This is relevant if a server deserializes untrusted objects.

Scores

CVSS scores of CVE-2017-20189, by who scored it
Scored byCVSSScoreVector
CISA-ADPADP (enrichment)3.1Critical9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVDNVD · Modified3.1Critical9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (exploitation in 30 days)
1.3% · top 29% of all CVEs (2 Nov 2026)
CISA SSVC
Exploitation: poc · Automatable: yes · Technical impact: total

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The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.

Weakness

Affected products

  • n/a

    • affected n/a

Affected packages

From reviewed advisories of the GitHub Advisory Database.

References (6)

Sources

The same CVE in the primary databases and aggregators, to check against.

Record last updated .