Security readout for executives and security teams
Plain-English summary
Malicious web content can trigger a memory-handling flaw and unexpectedly crash Safari on affected Apple devices. Available evidence describes an availability impact, not data theft, system takeover, or code execution. Apple addressed the issue in the listed March 2025 operating-system and Safari releases.
Executive priority
Schedule prompt remediation through normal patch management, prioritizing frequently used browsers and internet-facing user workflows. The documented impact is limited to a Safari crash, making this less urgent than known-exploited or code-execution vulnerabilities, but broad Apple-device exposure may increase operational relevance.
Technical view
CVE-2025-30427 is a CWE-416 use-after-free vulnerability reached while processing crafted web content. Its CVSS 3.1 score is 4.3: network-accessible, low complexity, no privileges required, user interaction required, and low availability impact. The supplied record identifies Safari crashing as the demonstrated consequence.
Likely exposure
Exposure is most likely on Apple devices running releases older than Safari 18.4, iOS/iPadOS 18.4, iPadOS 17.7.6, macOS 15.4, tvOS 18.4, visionOS 2.4, or watchOS 11.4. The sources do not provide complete vulnerable-version ranges, so asset-specific exposure requires confirmation.
Exploitation context
The flaw requires a user to process maliciously crafted web content. The bundle reports no CISA KEV listing and provides no evidence of active exploitation. It also does not establish impacts beyond an unexpected Safari crash; code execution or confidentiality impact should not be inferred.
Researcher notes
The record classifies the defect as CWE-416 but does not identify the underlying component, affected code path, complete version ranges, or root-cause details. Public evidence supplied here supports denial of service through a crash only. The Debian advisory is referenced, but its relevance cannot be determined from the bundle alone.
Mitigation direction
- Update Safari to 18.4 or later where independently managed.
- Update affected Apple operating systems to the listed fixed release or later.
- Prioritize devices that routinely browse untrusted or externally supplied web content.
- Check current Apple guidance for unsupported devices or unavailable updates.
Validation and detection
- Inventory Safari and Apple operating-system versions across managed assets.
- Compare each device against the applicable fixed release listed by Apple.
- Confirm updates completed successfully through device-management or endpoint inventory records.
- Investigate recurring Safari crashes associated with untrusted web content without assuming exploitation.
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.
CWE-416: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2025-30427 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
- Medium
- CVSS
- 4.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
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.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L2.81.4CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
4.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://support.apple.com/en-us/122371CVE reference, apple
- https://support.apple.com/en-us/122372CVE reference, apple
- https://support.apple.com/en-us/122373CVE reference, apple
- https://support.apple.com/en-us/122376CVE reference, apple
- https://support.apple.com/en-us/122377CVE reference, apple
- https://support.apple.com/en-us/122378CVE reference, apple
- https://support.apple.com/en-us/122379CVE reference, apple
- https://lists.debian.org/debian-lts-announce/2025/06/msg00016.htmlCVE reference, CVE
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.
Use After Free
Use After Free represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.