# CVE-2026-25260: Qualcomm Snapdragon memory corruption via TOCTOU in shared buffers

Source: https://junglewise.ai/threats/cve-2026-25260-qualcomm-snapdragon-memory-corruption-via-toctou-in-shared  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-01. Updated: 2026-06-01  
License: CC BY 4.0 with a link back

CVE-2026-25260 · Severity: high · CVSS 7.8 · Published 2026-06-01

A security vulnerability exists in Qualcomm chipsets that could allow a malicious application installed on a device to corrupt system memory. This issue occurs when the system fails to properly manage shared data buffers, potentially allowing an attacker to gain unauthorized access to sensitive information or cause the device to crash. This could lead to a total compromise of the device's data and operational stability.

Technologies: [Qualcomm Snapdragon Mobile](https://junglewise.ai/threats/technologies/snapdragon-mobile). Vendors: [Qualcomm](https://junglewise.ai/threats/vendors/qualcomm).

## Quick answers

**Is CVE-2026-25260 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-25260 being exploited in the wild.

**How severe is CVE-2026-25260?** High severity, with a CVSS score of 7.8, published 1 June 2026.

**Which products and versions are affected?** Qualcomm Snapdragon Mobile.

**Is there a fix for CVE-2026-25260?** 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-2026-25260 attacked?** It is attacked with local access, in device firmware.

**Am I affected by CVE-2026-25260?** Check whether you run Qualcomm Snapdragon Mobile. 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 Time-of-check Time-of-use (TOCTOU) race condition (CWE-367) exists in Qualcomm firmware/drivers. The vulnerability occurs when the system accesses shared buffers without validating concurrent user-mode input modifications, leading to memory corruption. An attacker with local low-privileged access can exploit this race condition to modify buffer contents after validation but before use. Successful exploitation can result in a complete loss of confidentiality, integrity, and availability. Users should refer to the June 2026 Qualcomm Security Bulletin for specific patch information.

## Affected products

- Qualcomm Snapdragon Mobile

## Timeline

- 2026-06-01: advisory: Published by Qualcomm and NVD

## References

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

## Related threats

- [Qualcomm Snapdragon memory corruption in HT40 channel switching](https://junglewise.ai/threats/cve-2026-25268-qualcomm-snapdragon-memory-corruption-in-ht40-channel-switching)
- [Qualcomm Chipset memory corruption in IOCTL escape operations](https://junglewise.ai/threats/cve-2026-25259-qualcomm-chipset-memory-corruption-in-ioctl-escape-operations)
- [Qualcomm Snapdragon memory corruption in IOCTL escape operations](https://junglewise.ai/threats/cve-2026-25258-qualcomm-snapdragon-memory-corruption-in-ioctl-escape-operations)
- [Qualcomm Snapdragon memory corruption in fastboot display mode command](https://junglewise.ai/threats/cve-2026-24092-qualcomm-snapdragon-memory-corruption-in-fastboot-display-mode)
- [Qualcomm Snapdragon memory corruption in fastboot commands](https://junglewise.ai/threats/cve-2026-24091-qualcomm-snapdragon-memory-corruption-in-fastboot-commands)