# CVE-2026-20760: Intel Processor microcode privilege escalation in Ring 0

Source: https://junglewise.ai/threats/cve-2026-20760-intel-processor-microcode-privilege-escalation-in-ring-0  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-11. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-20760 · Severity: info · CVSS 6.8 · Published 2026-08-11

Intel processors contain a flaw in their microcode that allows an authorized local user with elevated privileges to escalate their access further or cause system denial of service through improper handling of protected memory ranges. This affects Intel's latest mobile processors (Core Ultra Series 2 and 3) and requires a firmware update from system manufacturers to remediate.

Technologies: [Intel Core Ultra Processors Series 2](https://junglewise.ai/threats/technologies/core-ultra-processors-series-2), [Intel Core Ultra Processors Series 3](https://junglewise.ai/threats/technologies/core-ultra-processors-series-3). Vendors: [Intel](https://junglewise.ai/threats/vendors/intel).

## Quick answers

**Is CVE-2026-20760 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-20760 being exploited in the wild.

**How severe is CVE-2026-20760?** Informational severity, with a CVSS score of 6.8, published 11 August 2026.

**Which products and versions are affected?** Intel Core Ultra Processors Series 2 Lunar Lake, Arrow Lake Mobile platforms; Intel Core Ultra Processors Series 3 Panther Lake Mobile platform.

**Is there a fix for CVE-2026-20760?** A patch was published on 2026-08-11: Microcode updates released on Intel's GitHub repository Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-20760 attacked?** It is attacked with local access.

**Am I affected by CVE-2026-20760?** Check whether you run Intel Core Ultra Processors Series 2 or Intel Core Ultra Processors Series 3 at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A microcode vulnerability in Intel processors improperly handles overlaps between protected memory ranges within Ring 0 (hypervisor/kernel context), potentially allowing privilege escalation. The vulnerability requires local access and a low-complexity attack from an authorized user with existing elevated privileges (PR:L). Attack vector is local (AV:L) with no special attack requirements or user interaction needed. An attacker can achieve high impact on system availability (VA:H). Intel has released microcode updates via their public GitHub repository (intel/Intel-Linux-Processor-Microcode-Data-Files) to address this issue; system manufacturers must provide firmware updates incorporating these patches.

## Affected products

- Intel Core Ultra Processors Series 2 Lunar Lake, Arrow Lake Mobile platforms
- Intel Core Ultra Processors Series 3 Panther Lake Mobile platform

## Timeline

- 2026-08-11: disclosed: Intel-SA-01441 advisory published
- 2026-08-11: patched: Microcode updates released on Intel's GitHub repository

## References

- [https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01441.html](https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01441.html)

## Related threats

- [Intel Processors privilege escalation in Ring 0](https://junglewise.ai/threats/cve-2025-35973-intel-processors-privilege-escalation-in-ring-0)
- [Intel Processors Information Disclosure in Microarchitectural Predictor State](https://junglewise.ai/threats/cve-2025-35979-intel-processors-information-disclosure-in-microarchitectural)