# CVE-2026-65777: Active Directory Security Feature Bypass Vulnerability

> An authorized attacker can bypass security features in Windows Active Directory due to inadequate encryption strength.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 11 Aug 2026
- **Updated:** 28 Oct 2026
- **Also known as:** GHSA-92c8-rfc2-vg9x

## What is CVE-2026-65777?

CVE-2026-65777 is a medium-severity vulnerability in Microsoft Windows 11 23h2, published on 11 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Inadequate encryption strength in Windows Active Directory allows an authorized attacker to bypass a security feature over a network.

Weakness: CWE-326 (Inadequate Encryption Strength)

## Which versions are affected by CVE-2026-65777?

It affects 6 products.


Products: Microsoft Windows 11 23h2, Microsoft Windows 11 24h2, Microsoft Windows 11 25h2, Microsoft Windows 11 26h1, Microsoft Windows Server 2022, Microsoft Windows Server 2025.

## How do I fix CVE-2026-65777?

No fix has been published for CVE-2026-65777 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-65777 being exploited?

There is no known exploitation of CVE-2026-65777 in the wild and no public exploit code.

## Other vulnerabilities in Microsoft Windows 11 23h2

- [CVE-2026-81963](https://insights.sbomify.com/CVE-2026-81963/): Microsoft Windows Link Following (high 7.8, exploited in the wild)
- [CVE-2026-100219](https://insights.sbomify.com/CVE-2026-100219/): Microsoft QUIC Remote Code Execution Vulnerability (critical 9.8)
- [CVE-2026-96909](https://insights.sbomify.com/CVE-2026-96909/): Windows BitLocker Remote Code Execution Vulnerability (critical 9.8)
- [CVE-2026-62815](https://insights.sbomify.com/CVE-2026-62815/): Microsoft QUIC Remote Code Execution Vulnerability (critical 9.8)
- [CVE-2026-45657](https://insights.sbomify.com/CVE-2026-45657/): Windows Kernel Remote Code Execution Vulnerability (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-65777 and fix it if it is affected.

What it is: CVE-2026-65777 is a medium-severity vulnerability in Microsoft Windows 11 23h2, published on 11 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-65777 in the wild and no public exploit code.

Affected product: Microsoft Windows 11 23h2. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-65777/ (Markdown: https://insights.sbomify.com/CVE-2026-65777/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-65777
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-65777
- OSV: https://osv.dev/vulnerability/CVE-2026-65777

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-65777/
Summaries are generated and may contain mistakes; the official description above is the record.