Security readout for executives and security teams
Plain-English summary
CVE-2020-13623 is a denial-of-service issue in JerryScript 2.2.0. A crafted proxy-related JavaScript operation can exhaust stack resources and disrupt the process. Business impact depends on where JerryScript is embedded and whether untrusted JavaScript can run there.
Executive priority
Treat as inventory-driven risk, not an emergency from current evidence. Escalate if JerryScript 2.2.0 processes untrusted scripts in customer-facing, safety-critical, or high-availability systems.
Technical view
The public record describes stack consumption in JerryScript 2.2.0 via a proxy operation, leading to denial of service. The source bundle provides no CVSS score, CWE, CPE list, affected downstream products, or confirmed fixed version.
Likely exposure
Most likely exposure is embedded, IoT, or application environments that include JerryScript 2.2.0 and execute untrusted or user-controlled JavaScript. The bundle does not identify downstream products or package names.
Exploitation context
The CVE is not listed as KEV in the provided bundle, and no supplied source states active exploitation. A public GitHub issue is referenced, but the bundle provides limited exploitability context.
Researcher notes
Evidence is sparse. The CVE description and GitHub issue reference identify the affected engine and denial-of-service class, but not a fixed release, patch commit, CVSS vector, CWE, or downstream exposure.
Mitigation direction
- Inventory systems and firmware for JerryScript 2.2.0 usage.
- Check JerryScript upstream and vendor guidance for fixed versions.
- Reduce or remove untrusted JavaScript execution where feasible.
- Apply process resource limits and watchdog recovery for embedded deployments.
- Prioritize updates where script execution crosses trust boundaries.
Validation and detection
- Confirm whether JerryScript 2.2.0 is present in source, binaries, or firmware SBOMs.
- Identify whether proxy operations are enabled in reachable JavaScript execution paths.
- Review crash, restart, or stack exhaustion telemetry around JavaScript processing.
- Track the referenced GitHub issue and CVE record for remediation details.
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-2020-13623 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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 and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/jerryscript-project/jerryscript/issues/3785CVE 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.