Security readout for executives and security teams
Plain-English summary
A malicious or faulty app may trigger a stack overflow and crash an affected Apple device or service, causing denial of service. The cited impact is loss of availability, not data theft or modification. Apple addressed the flaw through stronger input validation in listed operating-system updates.
Executive priority
Treat this as a moderate, timely patching issue rather than an emergency. Accelerate updates for business-critical devices where disruption would materially affect operations. Current evidence does not support active exploitation or data compromise, but the availability impact can still interrupt users and services.
Technical view
CVE-2026-28852 is a CWE-20 input-validation flaw causing a stack overflow. CVSS 3.1 is 5.5: local access, low complexity, no privileges, user interaction, unchanged scope, and high availability impact. The sources identify denial of service as the supported outcome.
Likely exposure
Apple devices running versions older than the listed fixed releases may be exposed. The bundle does not provide reliable affected-version ranges, so inventory comparison and Apple advisory review are necessary. Exposure depends on an app reaching the vulnerable processing path and user interaction.
Exploitation context
The supplied record is not in KEV, and no cited source states that exploitation is active or public. The vector indicates local access and user interaction, reducing remote attack likelihood. Evidence supports app-triggered denial of service only; it does not establish code execution, confidentiality loss, or integrity loss.
Researcher notes
The description is sparse and does not identify the vulnerable component, input format, or exact affected-version boundaries. The record attributes the fix to improved input validation. Avoid inferring memory-corruption outcomes beyond denial of service; the supplied CVSS vector explicitly scores confidentiality and integrity impacts as none.
Mitigation direction
- Update iPhone and iPad devices to 18.7.7 or 26.4, as applicable.
- Update macOS Sequoia to 15.7.5 or macOS Tahoe to 26.4.
- Update tvOS, visionOS, and watchOS devices to 26.4.
- Review Apple advisories for device-specific eligibility and any newer superseding releases.
- Prioritize availability-critical devices and systems permitting installation of less-trusted apps.
Validation and detection
- Inventory operating-system versions across managed Apple devices.
- Confirm each device meets or exceeds its applicable listed fixed release.
- Verify update deployment status through endpoint or mobile-device management records.
- Review crash telemetry for unusual app-associated stack-overflow or denial-of-service events.
- Consult Apple advisories where exact vulnerable-version boundaries affect remediation decisions.
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-20: 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-2026-28852 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
- 5.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
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:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H1.83.6CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
5.5MediumVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
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/126792CVE reference, apple
- https://support.apple.com/en-us/126793CVE reference, apple
- https://support.apple.com/en-us/126794CVE reference, apple
- https://support.apple.com/en-us/126795CVE reference, apple
- https://support.apple.com/en-us/126797CVE reference, apple
- https://support.apple.com/en-us/126798CVE reference, apple
- https://support.apple.com/en-us/126799CVE reference, apple
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.