# CVE-2026-21368: Qualcomm Snapdragon memory corruption in JPEG command parsing

Source: https://junglewise.ai/threats/cve-2026-21368-qualcomm-snapdragon-memory-corruption-in-jpeg-command-parsing  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-06. Updated: 2026-07-06  
License: CC BY 4.0 with a link back

CVE-2026-21368 · Severity: medium · CVSS 5.3 · Published 2026-07-06

A memory corruption vulnerability exists in several Qualcomm Snapdragon chipsets used in mobile devices, automotive systems, and industrial IoT equipment. An attacker with local access to a device could potentially cause system instability or gain unauthorized access to sensitive memory areas by exploiting how the hardware processes image commands. This could lead to a partial loss of device confidentiality or availability.

Technologies: [Qualcomm Fastconnect 6700](https://junglewise.ai/threats/technologies/fastconnect-6700), [Qualcomm Fastconnect 6900](https://junglewise.ai/threats/technologies/fastconnect-6900), [Qualcomm Fastconnect 7800](https://junglewise.ai/threats/technologies/fastconnect-7800), [Qualcomm Sa7255p](https://junglewise.ai/threats/technologies/sa7255p), [Qualcomm Sa8255p](https://junglewise.ai/threats/technologies/sa8255p), [Qualcomm Sa8770p](https://junglewise.ai/threats/technologies/sa8770p). Vendors: [Qualcomm](https://junglewise.ai/threats/vendors/qualcomm).

## Quick answers

**Is CVE-2026-21368 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-21368 being exploited in the wild.

**How severe is CVE-2026-21368?** Medium severity, with a CVSS score of 5.3, published 6 July 2026.

**Which products and versions are affected?** Qualcomm, Inc. Snapdragon FastConnect 6700, 6900, 7800; G3x Gen 2; IQ9 Series; SA7255P, SA8255P, SA8770P, SD 8 Gen1 5G, and others.

**Is there a fix for CVE-2026-21368?** 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-2026-21368 attacked?** It is attacked with local access, in device firmware.

**Am I affected by CVE-2026-21368?** Check whether you run Qualcomm Fastconnect 6700, Qualcomm Fastconnect 6900, Qualcomm Fastconnect 7800 or one of the others listed. 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

An out-of-bounds write (CWE-787) exists in Qualcomm Snapdragon firmware during the parsing of JPEG commands. The vulnerability is caused by unaccounted extra writes to a buffer during validation checks, leading to memory corruption. This is a local attack requiring low privileges, though it has high complexity (AC:H). Successful exploitation allows an attacker to impact the integrity, confidentiality, and availability of the system, potentially crossing security boundaries (Scope: Changed). Affected chipsets include various Snapdragon Mobile, Auto, and Compute platforms.

## Affected products

- Qualcomm, Inc. Snapdragon FastConnect 6700, 6900, 7800; G3x Gen 2; IQ9 Series; SA7255P, SA8255P, SA8770P, SD 8 Gen1 5G, and others

## Timeline

- 2026-07-06: advisory: Initial disclosure by Qualcomm and NVD publication.

## References

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

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- [Qualcomm component use-after-free information disclosure](https://junglewise.ai/threats/cve-2026-25284-qualcomm-component-use-after-free-information-disclosure)
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- [Qualcomm component out-of-bounds memory access in data processing](https://junglewise.ai/threats/cve-2026-25282-qualcomm-component-out-of-bounds-memory-access-in-data-processing)