CVE-2020-27221

highpriority · track · 40EPSS 0.016 · 75 %ileDEEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.55% (75th) EPSS

CVSS 7.5 · high

Is it mine?

12 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

In Eclipse OpenJ9 up to and including version 0.23, there is potential for a stack-based buffer overflow when the virtual machine or JNI natives are converting from UTF-8 characters to platform encoding.

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–9.8

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 6.4

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.18.8highAV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-787USprimaryCWE-121USCWE-121US

affected products (12)

Products and version ranges known to be affected.

IBM Tivoli Monitoring 6.3.0all versionscert_bundDEcpe:/a:ibm:tivoli_monitoring:6.3.0
IBM Tivoli Monitoring 6.3.0.1all versionscert_bundDEcpe:/a:ibm:tivoli_monitoring:6.3.0.1
IBM Tivoli Monitoring 6.3.0.2all versionscert_bundDEcpe:/a:ibm:tivoli_monitoring:6.3.0.2
IBM Tivoli Monitoring 6.3.0.3all versionscert_bundDEcpe:/a:ibm:tivoli_monitoring:6.3.0.3
IBM Tivoli Monitoring 6.3.0.4all versionscert_bundDEcpe:/a:ibm:tivoli_monitoring:6.3.0.4
IBM Tivoli Monitoring 6.3.0.5all versionscert_bundDEcpe:/a:ibm:tivoli_monitoring:6.3.0.5
IBM Tivoli Monitoring 6.3.0.6all versionscert_bundDEcpe:/a:ibm:tivoli_monitoring:6.3.0.6
IBM Tivoli Monitoring 6.3.0.7all versionscert_bundDEcpe:/a:ibm:tivoli_monitoring:6.3.0.7
IBM Tivoli Monitoring for Virtual Environmentsall versionscert_bundDEcpe:/a:ibm:tivoli_monitoring:::for_virtual_environments
The Eclipse Foundation Eclipse OpenJ9≤ unspecified ≤0.23enisa_euvdEU
Eclipse Foundation Eclipse OpenJ9≤ 0.23.0fstec_bduRU
eclipse openj9≤ 0.23.0nvdUScpe:2.3:a:eclipse:openj9:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-0016IBM Tivoli Monitoring: Mehrere SchwachstellenDeutsch2023-01-03csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in IBM Tivoli Monitoring ausnutzen, um die Kontrolle über das System zu erlangen, vertrauliche Informationen offenzulegen, einen Denial of Service Zustand herbeizuführen, sowie weitere nicht spezifizierte Auswirkungen zu ereichen.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund nvd NVD CVE.org MITRE

published 2021-01-21modified 2026-06-17

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+16119 more

references (75)

External citations — patches, advisories, analysis.

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