Security readout for executives and security teams
Plain-English summary
This CVE describes a JerryScript 2.2.0 bug where the JavaScript scanner hits an internal assertion and stops. Public metadata does not provide CVSS, CWE, affected CPEs, patch version, or active exploitation evidence. Business risk depends on whether your products embed JerryScript and process untrusted JavaScript.
Executive priority
Treat this as an inventory-driven follow-up, not an emergency, unless JerryScript 2.2.0 is embedded in internet-facing or customer-controlled scripting paths. The missing severity and fix data make exposure validation the immediate priority.
Technical view
The assertion condition 'scope_stack_p > context_p->scope_stack_p' fails in scanner_literal_is_created at js-scanner-util.c:2510. The CVE record identifies JerryScript 2.2.0 and links to GitHub issue #3823. Available sources do not characterize reachable input, exploitability, security impact, or fixed versions.
Likely exposure
Most likely exposure is embedded or bundled JerryScript 2.2.0, especially where the engine parses JavaScript supplied by users, devices, plugins, or remote services. The CVE metadata does not provide CPEs or a complete affected-version range.
Exploitation context
The source bundle does not show CISA KEV listing, public exploitation, exploit availability, or in-the-wild activity. The observable failure is an assertion in scanner logic, so denial-of-service is plausible, but confirmed impact is not documented in the provided sources.
Researcher notes
Evidence is thin: one CVE description and a GitHub issue reference. Avoid assuming memory corruption, code execution, affected ranges beyond JerryScript 2.2.0, or remediation details. Confirm the original issue discussion and upstream release history before assigning operational severity.
Mitigation direction
- Inventory products and firmware for embedded JerryScript 2.2.0.
- Review JerryScript issue #3823 and vendor release guidance for fixed versions.
- Limit untrusted JavaScript parsing where JerryScript 2.2.0 is present.
- Ask suppliers whether JerryScript is included in shipped components.
- Track CVE updates because current metadata is incomplete.
Validation and detection
- Check SBOMs and build manifests for JerryScript 2.2.0.
- Search dependency trees for jerryscript-project/jerryscript references.
- Confirm whether exposed features execute or parse untrusted JavaScript.
- Review crash telemetry for scanner assertion failures matching this CVE.
- Document compensating controls if no vendor fix is identified.
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-2020-23313 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/3823CVE reference · x_refsource_CONFIRM
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.