Security readout for executives and security teams
Plain-English summary
This is a denial-of-service flaw in Oracle GraalVM Enterprise Edition. A low-privileged network attacker could make affected GraalVM instances hang or repeatedly crash. It is not described as data theft or privilege escalation, but availability impact is high and may affect dependent products.
Executive priority
Treat this as a high-priority availability risk for affected GraalVM Enterprise Edition deployments. The business concern is service disruption, not confirmed data compromise. Prioritize internet-facing or broadly reachable services first, then dependent products named by Oracle guidance.
Technical view
CVE-2020-2802 affects Oracle GraalVM Enterprise Edition 19.3.1 and 20.0.0 in the GraalVM Compiler component. Oracle rates it CVSS 7.7 with network attack vector, low complexity, low privileges, no user interaction, changed scope, and high availability impact only.
Likely exposure
Exposure is limited to systems running Oracle GraalVM Enterprise Edition 19.3.1 or 20.0.0. Risk is higher where low-privileged users or services can reach GraalVM-backed applications over network protocols. Oracle notes possible impact to additional products, but the supplied sources do not identify them.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation. Oracle describes the vulnerability as easily exploitable by a low-privileged network attacker via multiple protocols. No public exploit details are included in the supplied bundle.
Researcher notes
The source bundle provides vendor, affected versions, component, and CVSS details, but not root cause, exploit primitives, patch version names, or affected downstream products. Validation should focus on version inventory, network reachability, and whether Oracle CPU remediation is present.
Mitigation direction
- Apply Oracle's April 2020 Critical Patch Update guidance for GraalVM Enterprise Edition.
- Upgrade or replace GraalVM Enterprise Edition 19.3.1 and 20.0.0 where present.
- Restrict network access to GraalVM-backed services until vendor remediation is confirmed.
- Check Oracle guidance for any dependent Oracle products impacted by this flaw.
Validation and detection
- Inventory GraalVM Enterprise Edition deployments and confirm exact versions.
- Identify applications or services exposing affected GraalVM-backed functionality over network protocols.
- Confirm whether Oracle April 2020 CPU remediation has been applied.
- Review monitoring for repeated crashes, hangs, or availability degradation in affected services.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2020-2802 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.7 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H3.14Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
7.7HighVector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.oracle.com/security-alerts/cpuapr2020.htmlCVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.