CVE-2026-21374: Memory Corruption when processing auxiliary sensor input/output control commands with insufficient buffer size
28
Routine
HIGH 7.8MITIGATEMITIGATEMITIGATE
CVE-2026-21374 is a high-severity flaw (CVSS 7.8) affecting sm6250 firmware, snapdragon 460 mobile platform firmware, snapdragon 662 mobile platform firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Memory Corruption when processing auxiliary sensor input/output control commands with insufficient buffer size validation.
Why this priority
High severity
No fix is published yet: follow the downgrade or mitigation steps.
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
qualcomm snapdragon 7c gen 2 compute platform firmware MITIGATE
Affected: all versions
Fixed in: no fixed release known
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
qualcomm snapdragon 7c\+ gen 3 compute firmware MITIGATE
Affected: all versions
Fixed in: no fixed release known
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
Verify at the official sourceNVD · CVE Program · Report a problem with this page Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-21374?
sm6250 firmware: mitigate or apply the listed mitigation; snapdragon 460 mobile platform firmware: mitigate or apply the listed mitigation; snapdragon 662 mobile platform firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2026-21374 being exploited?
CVE-2026-21374 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-21374 affect?
CVE-2026-21374 affects sm6250 firmware, snapdragon 460 mobile platform firmware, snapdragon 662 mobile platform firmware. Severity is high (CVSS 7.8). Memory Corruption when processing auxiliary sensor input/output control commands with insufficient buffer size validation.
PatchTheCVE