Security readout for executives and security teams
Plain-English summary
CVE-2018-11597 is a denial-of-service flaw in Espruino before 1.99. A crafted input file can crash the application during syntax parsing. The public record does not show data theft, code execution, or active exploitation, but affected devices or services that parse untrusted code could lose availability.
Executive priority
Treat this as an availability risk, not a confirmed breach risk. Prioritize remediation for internet-facing, multi-user, or safety-sensitive environments using Espruino before 1.99. Lower priority is reasonable for isolated systems that never parse untrusted input.
Technical view
The CVE describes a buffer overflow in Espruino's parser, tied to missing stack-exhaustion checks in jsparse.c when parsing deeply nested syntax. The reported impact is application crash. Public metadata provides no CVSS score, CWE, or detailed affected CPE list; the version boundary given is Espruino before 1.99.
Likely exposure
Exposure is most likely where Espruino before 1.99 parses user-supplied or otherwise untrusted JavaScript input files. Embedded deployments that only run trusted firmware or trusted local scripts have lower practical exposure, based on the provided sources.
Exploitation context
The source bundle does not indicate CISA KEV listing or active exploitation. It describes attacker-crafted input causing a crash during parsing, but does not support claims of remote compromise, persistence, privilege escalation, or data exposure.
Researcher notes
Evidence is limited to the CVE description and GitHub issue/commit references. The bundle lacks CVSS, CWE, CPEs, exploit status, and full vendor advisory text. Avoid expanding scope beyond Espruino before 1.99 without additional vendor evidence.
Mitigation direction
- Upgrade Espruino deployments to version 1.99 or later where applicable.
- Review the referenced upstream commit and vendor guidance before backporting fixes.
- Restrict untrusted users from submitting code or input files for Espruino parsing.
- Add operational monitoring for repeated parser crashes or unexpected device resets.
Validation and detection
- Inventory Espruino versions across firmware, build artifacts, and deployed devices.
- Confirm vulnerable builds are not before version 1.99.
- Verify patched source includes the upstream parser stack-exhaustion check.
- Review logs for unexplained Espruino crashes during input parsing.
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-2018-11597 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/espruino/Espruino/commit/51380baf17241728b6d48cdb84140b931e3e3cc5CVE reference · x_refsource_MISC
- https://github.com/espruino/Espruino/issues/1448CVE 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.