Security readout for executives and security teams
Plain-English summary
A malicious website could make vulnerable Firefox versions crash by causing internal crash-test pages to load. The impact is temporary denial of service, not data theft or code execution in the provided sources. This matters mainly where very old Firefox versions remain in use.
Executive priority
Treat as low urgency unless legacy Firefox is still present in business workflows. The business risk is disruption, not confirmed compromise, but unsupported browsers create broader security exposure.
Technical view
CVE-2018-18510 affects Firefox versions before 64. Web content could trigger about:crashcontent or about:crashparent, pages intended for testing browser or content-process crashes. The CVE describes a non-persistent denial-of-service condition. No CVSS, CWE, or active exploitation evidence is provided.
Likely exposure
Exposure is likely limited to legacy Firefox installations below version 64, especially unmanaged desktops, kiosks, or embedded browser environments that can visit untrusted sites.
Exploitation context
The source bundle does not show KEV listing or cited evidence of active exploitation. The described attack requires a user or browser instance to encounter malicious web content that references the crash pages.
Researcher notes
The public record identifies Firefox before 64 and a non-persistent DoS via internal crash pages. The provided sources do not include CVSS, CWE, exploit-in-the-wild evidence, or impact beyond crashing loaded content or the browser.
Mitigation direction
- Upgrade Firefox below version 64 to Firefox 64 or a supported current release.
- Identify and remove unsupported Firefox installations from managed endpoints.
- Review Mozilla MFSA2018-29 and Bugzilla 1507702 for vendor-specific guidance.
- Prioritize browser update compliance on kiosks and shared browsing systems.
Validation and detection
- Inventory Firefox versions and flag any installation below version 64.
- Confirm affected systems can no longer run unsupported Firefox builds.
- Review endpoint crash telemetry for repeated browser crashes after web browsing.
- Verify browser update policy coverage for unmanaged or shared systems.
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-2018-18510 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://www.mozilla.org/security/advisories/mfsa2018-29/CVE reference · x_refsource_MISC
- https://bugzilla.mozilla.org/show_bug.cgi?id=1507702CVE 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.