NVD / CVE Program· CNA apple

CVE-2026-65400: An authentication issue was addressed with improved state management.

Noroxi assessment

Priority: This week (action score 70/100)

CISA has confirmed exploitation in the wild (Aug 18, 2026). Remediation deadline for US federal agencies: Aug 21, 2026.
Probability of exploitation in the next 30 days: 1.7% (FIRST EPSS); higher than 77.5% of all records.
Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
According to CISA the attack is automatable: targets can be found by mass scanning.
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 authentication issue was addressed with improved state management. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.7.9, macOS Sonoma 14.8.9, macOS Tahoe 26.6.1, macOS Tahoe 26.7. An attacker on the network may be able to authenticate to Screen Sharing without valid credentials.

CriticalCVSS 9.8 · v3.1KEVWeaponized No fix recorded

Published: Aug 6, 2026
Updated: Oct 26, 2026
EPSS: 1.7% · 77th percentile
CWE: CWE-287

Report tools

JSON

Action score

This week

Don’t wait for the next maintenance window.

CVSS: 39 / 40 · 9.8 / 10
CISA KEV: 30 / 30 · Listed
EPSS: 1 / 30 · 1.7%

CISA SSVC decision

Exploitation: active
Automatable: yes
Technical impact: total

Vulnrichment: CISA's decision-tree inputs.

Actively exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on Aug 18, 2026. That signals real attacks, not theory.

Remediation deadline for US federal agencies: Aug 21, 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.

Running WordPress? Scan your site free with WP Lens

Is your version affected? Check it

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.

We use this product, ask for help

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.

Vendor	Product	CPE
apple	macos	cpe:2.3:o:apple:macos

Affected versions

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

apple macos14.0 and later · before 14.8.9
apple macos15.0 and later · before 15.7.9
apple macos26.0 and later · before 26.6.1

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 macOS
- before 14.8.9affected
- before 15.7.9affected
- before 26.6.1affected
- before 26.7affected
- before 27affected

Same product

apple: all records

Other highest-scoring records for the same primary product.

CVE-2025-31200A memory corruption issue was addressed with improved bounds checking.KEV
75This week
CVE-2025-31201This issue was addressed by removing the vulnerable code.KEV
73This week
CVE-1999-0590A system does not present an appropriate legal message or warning to a user who is accessing it.
42Plan

Published before and after this one in the same product

← EarlierCVE-2026-64745Jul 27, 2026 · This issue was addressed with additional restrictions on the lock screen.
9Monitor
← EarlierCVE-2026-64767Jul 27, 2026 · A buffer overflow was addressed with improved bounds checking.
39Monitor
Later →CVE-2026-20679Aug 21, 2026 · The issue was addressed with improved checks.
17Monitor

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 ×3

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
Source	Kind	Date
Proof-of-concept repository on GitHub	stars:3	2026-08-18
Proof-of-concept repository on GitHub	stars:10	2026-08-21
Proof-of-concept repository on GitHub	stars:10	2026-08-22

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.

PublishedAug 6, 2026
First PoCAug 18, 2026+11 d
CISA KEVAug 18, 2026+11 d
TodayNov 3, 2026+88 d

EPSS, last 120 days+1% in 7 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-2026-8686875 days apartAn authentication issue was addressed with improved state management.
36Monitor
CVE-2026-11242781 days apartAn authentication issue was addressed with improved state management.
32Monitor
CVE-2025-43281295 days apartThe issue was addressed with improved authentication.
31Monitor
CVE-2026-6537539 days apartThe issue was addressed with improved authentication.
30Monitor
CVE-2025-31271325 days apartThis issue was addressed through improved state management.
30Monitor
CVE-2026-4376610 days apartAn authorization issue was addressed with improved state management.
18Monitor

Chain candidates

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

CVE-2026-4374910 days apartA parsing issue in the handling of directory paths was addressed with improved path validation.
31Monitor
CVE-2026-8456839 days apartA path traversal issue was addressed with improved path validation.
31Monitor
CVE-2026-4379139 days apartA validation issue was addressed with improved input sanitization.
26Monitor
CVE-2026-8690239 days apartA parsing issue in the handling of directory paths was addressed with improved path validation.
22Monitor

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.
No user action is required.
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: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

Weakness class (CWE)

CWE-287 · Improper Authentication

CVSS vector

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

nvd-secondary

Root cause

Authentication is added route by route instead of being enforced in one place. When a route added later bypasses the shared middleware, the session check never runs for it.

The bug in code

The whole CWE-287 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1app.use("/admin", requireSession, adminRouter);
2

3// Route added later skips the middleware
4app.post("/admin-api/config", updateConfig);

Fixed

1const admin = express.Router();
2admin.use(requireSession, requireRole("admin"));
3

4admin.post("/config", updateConfig);
5app.use("/admin", admin);

Attack context

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

Attack patterns (CAPEC)

ATT&CK techniques

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

support.apple.com/en-us/148170

Show all references (8 more)

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

All records