MitM in Qualcomm GPS/GNSS assistance data download
CVE-2025-21450 is a critical vulnerability in Qualcomm GPS/GNSS components caused by the use of an insecure connection method when downloading GNSS assistance data. According to the provided content, Qualcomm GPS firmware retrieves data over unencrypted HTTP from GPS-related infrastructure, including gpsonextra.net and izatcloud.net, without sufficient cryptographic authentication of the downloaded content. This allows an attacker in a man-in-the-middle position to intercept and modify assistance data in transit. The issue affects closed-source Qualcomm components and reportedly impacts more than 100 chipsets, including Snapdragon 8 Gen 3, Snapdragon 7 series, and Snapdragon 6 series devices running firmware prior to Qualcomm's July 2025 security update.
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Impact, mitigation & remediation
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
Impact
What an attacker gets, and what they’ve been doing with it.
Mitigation
If you can’t patch tonight, do this now.
Remediation
Patch, then assume compromise.
Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Affected products & vendors
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
Recent activity
6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A critical vulnerability in a Qualcomm closed-source component affecting Android devices, details provided by Qualcomm.
A critical vulnerability in a Qualcomm closed-source component affecting Android devices, details provided by Qualcomm.
A critical improper authentication vulnerability in Qualcomm GPS/GNSS firmware caused by downloading GNSS data over unencrypted HTTP, enabling man-in-the-middle tampering, GPS spoofing, and denial of service.
The version that knows your environment.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.