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NVD / CVE Program· CNA apple

CVE-2026-86950: An out-of-bounds write issue was addressed with improved bounds checking.

Noroxi assessment

Priority: This week (action score 73/100)

  • CISA has confirmed exploitation in the wild (Sep 29, 2026). Remediation deadline for US federal agencies: Oct 13, 2026.
  • Probability of exploitation in the next 30 days: 26.1% (FIRST EPSS); higher than 98% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. A user must open a link or visit a page. No special conditions are required; it is repeatable.
  • According to the record, no fixed version is available yet.

Don’t wait for the next maintenance window. Until a fix is released, restrict access to the affected component and follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · CISA KEV · FIRST EPSS

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 18.7.11 and iPadOS 18.7.11, iOS 26.7.1 and iPadOS 26.7.1, macOS Sequoia 15.8.1, macOS Tahoe 26.7.1. Processing a maliciously crafted file may lead to arbitrary code execution. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals on versions of iOS before iOS 27.

HighCVSS 8.8 · v3.1KEVWeaponized No fix recorded
Published
Sep 28, 2026
Updated
Oct 27, 2026
EPSS
26.1% · 98th percentile

Report tools

JSON

Action score

73

This week

Don’t wait for the next maintenance window.

CVSS
35 / 40 · 8.8 / 10
CISA KEV
30 / 30 · Listed
EPSS
8 / 30 · 26.1%

CISA SSVC decision

Exploitation
active
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

Actively exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on Sep 29, 2026. That signals real attacks, not theory.

Remediation deadline for US federal agencies: Oct 13, 2026.

Get told when this record changes

  • In CISA KEV: exploitation in the wild confirmed
  • Weaponized exploit exists
  • No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-86950

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
appleipados
appleiphone os
applemacos

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • apple ipadosbefore 18.7.11
  • apple ipados26.0 and later · before 26.7.1
  • apple iphone osbefore 18.7.11
  • apple iphone os26.0 and later · before 26.7.1
  • apple macosbefore 15.8.1
  • apple macos26.0 and later · before 26.7.1

Versions reported by the vendor

Affected version ranges reported by the assigning authority (apple). Independent of NVD's CPE analysis and usually ahead of it.

  • Apple iOS and iPadOS

    • before 18.7.11affected
    • before 26.7.1affected

  • Apple macOS

    • before 15.8.1affected
    • before 26.7.1affected

Same product

apple: all records

Other highest-scoring records for the same primary product.

  • CVE-2025-43300An out-of-bounds write issue was addressed with improved bounds checking.KEV
    90Now
  • CVE-2021-30860An integer overflow was addressed with improved input validation.KEV
    84Now
  • CVE-2023-41064A buffer overflow issue was addressed with improved memory handling.KEV
    77This week

Published before and after this one in the same product

  • ← EarlierCVE-2026-86905Sep 14, 2026 · This issue was addressed by removing the vulnerable code.
    22Monitor
  • ← EarlierCVE-2026-86924Sep 14, 2026 · A memory corruption issue was addressed with improved input validation.
    22Monitor
  • Later →CVE-2026-84490Oct 20, 2026 · This issue was addressed through improved state management.
    8Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

Weaponized

A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.

Evidence

  • Proof-of-concept repository on GitHub ×6

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Proof-of-concept repository on GitHubstars:12026-10-01
Proof-of-concept repository on GitHubstars:102026-10-01
Proof-of-concept repository on GitHubstars:12026-10-02
Proof-of-concept repository on GitHubstars:62026-10-02
Proof-of-concept repository on GitHubstars:12026-10-05
Proof-of-concept repository on GitHubstars:12026-10-20

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. Published
  2. CISA KEVsame day
  3. First PoC+2 d
  4. TodayNov 9, 2026+41 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2025-43300404 days apartAn out-of-bounds write issue was addressed with improved bounds checking.KEV
    90Now
  • CVE-2026-6541414 days apartAn out-of-bounds write issue was addressed with improved bounds checking.
    39Monitor
  • CVE-2026-4380363 days apartAn out-of-bounds write issue was addressed with improved bounds checking.
    39Monitor
  • CVE-2026-6476963 days apartAn out-of-bounds write issue was addressed with improved bounds checking.
    39Monitor
  • CVE-2026-6477063 days apartAn out-of-bounds write issue was addressed with improved bounds checking.
    39Monitor
  • CVE-2026-6477263 days apartAn out-of-bounds write issue was addressed with improved input validation.
    39Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-787 · Out-of-bounds Write

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Exploit maturitynone → weaponized
  2. KEV✗ → ✓
  3. SSVC exploitationnone → active
  4. SSVC exploitation— → none

For records you follow, these changes also arrive as notifications. →

References

Show all references (7 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records