# CVE-2026-25267: Qualcomm memory corruption in secure loader page table initialization

Source: https://junglewise.ai/threats/cve-2026-25267-memory-corruption-when-non-secure-loader-rewrites-page-tables  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-06. Updated: 2026-10-06  
License: CC BY 4.0 with a link back

CVE-2026-25267 · Severity: high · CVSS 7.8 · Published 2026-10-06

A memory corruption vulnerability exists in Qualcomm's secure boot loader where non-secure firmware can rewrite page tables before secure memory initialization completes. An attacker with the ability to modify non-secure loader code could corrupt memory, potentially leading to privilege escalation, data exposure, or system compromise during the critical boot process.

Vendors: [Qualcomm](https://junglewise.ai/threats/vendors/qualcomm).

## Quick answers

**Is CVE-2026-25267 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-25267 being exploited in the wild.

**How severe is CVE-2026-25267?** High severity, with a CVSS score of 7.8, published 6 October 2026.

**Which products and versions are affected?** Qualcomm Secure Boot Loader <UNKNOWN>.

**Is there a fix for CVE-2026-25267?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-25267 attacked?** It is attacked with local access, in device firmware.

**Am I affected by CVE-2026-25267?** Check whether you run Qualcomm Secure Boot Loader 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

The vulnerability involves a race condition where non-secure loader code can modify memory page tables before secure memory regions are properly initialized and protected. This occurs in the early boot sequence before security domains are enforced. An attacker with control over non-secure firmware components can corrupt page table entries to access protected memory regions.

## Affected products

- Qualcomm Secure Boot Loader <UNKNOWN>

## Timeline

- 2026-10-06: disclosed

## References

- [https://docs.qualcomm.com/product/publicresources/securitybulletin/october-2026-bulletin.html](https://docs.qualcomm.com/product/publicresources/securitybulletin/october-2026-bulletin.html)