Security readout for executives and security teams
Plain-English summary
CVE-2023-37456 is a Firefox for iOS reliability flaw. The session restore helper could crash when its message handler received no parameter. The public record lists Firefox for iOS versions before 115 as affected and does not describe data theft, privilege escalation, or remote code execution.
Executive priority
Treat this as routine patch hygiene, not an emergency. It affects an end-user mobile browser and is described as a crash issue, with no cited active exploitation or high-impact compromise path.
Technical view
The issue is mapped to CWE-476, consistent with missing null or parameter handling. Mozilla describes a crash in the session restore helper when no parameter is sent to the message handler. The available sources do not provide CVSS, exploit details, or broader affected platforms.
Likely exposure
Exposure is limited to users or managed iOS devices running Firefox for iOS before version 115. Organizations without Firefox for iOS, or with updated installations, are unlikely to be exposed based on the provided sources.
Exploitation context
CISA KEV status is false in the source bundle, and no cited source states active exploitation. The documented impact is a crash condition, so business risk is mainly user disruption and mobile browser reliability.
Researcher notes
Public evidence is sparse. The CVE record and Mozilla advisory identify the product, fixed version boundary, CWE, and crash behavior, but do not provide CVSS, exploitability analysis, or detailed root-cause mechanics.
Mitigation direction
- Update Firefox for iOS to version 115 or later.
- Confirm mobile device management policies deploy current app versions.
- Check Mozilla advisory MFSA2023-25 for any updated vendor guidance.
- Prioritize remediation for managed devices using Firefox for iOS regularly.
Validation and detection
- Inventory Firefox for iOS versions across managed iOS devices.
- Flag any installations below version 115 as affected.
- Verify updated devices report Firefox for iOS 115 or later.
- Review mobile crash telemetry for recurring Firefox session restore crashes.
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.
CWE-476: Exact CWE lookup
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Open ATT&CK lookupCVE-2023-37456 mapping review
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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://bugzilla.mozilla.org/show_bug.cgi?id=1795496CVE reference
- https://www.mozilla.org/security/advisories/mfsa2023-25/CVE reference
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.
NULL Pointer Dereference
NULL Pointer Dereference represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.