Qualcomm Addresses Critical Zero-Day Vulnerabilities in Mobile Chipsets
Leading semiconductor manufacturer Qualcomm has released security patches addressing multiple vulnerabilities across its chipset portfolio, including three zero-day flaws that were reportedly being actively exploited by hackers.
Key Details About the Security Update
- Patch Release Date: June 2025
- Vulnerability Status: Three zero-days under “limited, targeted exploitation”
- Reported By: Google’s Android security team and Threat Analysis Group (TAG)
- CVE Identifiers: CVE-2025-21479, CVE-2025-21480, CVE-2025-27038
Understanding the Threat Landscape
Zero-day vulnerabilities like these are particularly dangerous because:
- They are unknown to the vendor at discovery
- Exploits exist before patches are available
- They’re highly valued by both cybercriminals and state-sponsored actors
Qualcomm confirmed the vulnerabilities were reported by Google in February 2025 and has been working with device manufacturers since May to distribute the fixes.
Implementation Challenges
Due to Android’s decentralized update system:
- Patches must be adopted by individual device manufacturers
- Update timelines vary significantly between brands
- Many devices may remain vulnerable for weeks or months
“We encourage end users to apply security updates as they become available from device makers,” said Qualcomm spokesperson Dave Schefcik.
Which Devices Are Affected?
While Qualcomm chips power numerous Android devices, Google confirmed its Pixel lineup is not vulnerable to these specific exploits. The company declined to provide additional details about the exploitation circumstances.
Why Chipset Vulnerabilities Matter
Mobile chipsets are prime targets for attackers because:
- They have broad system access privileges
- Vulnerabilities can enable lateral movement within devices
- Successful exploits may compromise sensitive user data
This incident follows recent cases of Qualcomm chipset exploitation, including a 2024 incident where Serbian authorities allegedly used a Qualcomm zero-day via Cellebrite’s tools.
Recommended Actions
- Check for security updates from your device manufacturer
- Apply patches immediately when available
- Monitor official communications from Qualcomm and device makers
For security researchers: Contact information remains available for reporting related vulnerabilities via secure channels.
Article updated with Qualcomm’s official statement.
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