CVE-2025-27038 is an use-after-free vulnerability in Qualcomm Multiple Chipsets. CISA added it to the Known Exploited Vulnerabilities catalogue on 3 June 2025, which means attackers have used it in real attacks. Multiple Qualcomm chipsets contain a use-after-free vulnerability. This vulnerability allows for memory corruption while rendering graphics using Adreno GPU drivers in Chrome.
What This Vulnerability Means in Practice
A use-after-free in a chipset graphics path means the driver can continue to reference memory after it has been released. In GPU code, that is dangerous because rendering workloads are high-frequency, complex, and often reachable through ordinary application activity, not just direct admin actions.
For a vulnerability in Qualcomm Multiple Chipsets, the practical concern is that exploitation can occur inside graphics processing, where memory corruption may affect stability, confidentiality, or code execution. The presence of this issue in the KEV catalogue means defenders should treat it as actively exploited rather than theoretical. For authoritative record details and prioritisation context, use the CVE Program and the NIST National Vulnerability Database.
Why Graphics Driver Use-After-Free Bugs Are Dangerous
Use-after-free flaws are memory safety failures. Once freed memory is reused, an attacker may be able to influence object contents, trigger corruption, or steer execution flow. In a graphics driver, that risk is amplified by the amount of parsing, state management, and shared memory handling involved in rendering.
GPU drivers sit close to the operating system and hardware boundary, so a defect there can have broader consequences than a crash in a user-space app. If the vulnerable path is reachable during normal rendering, the attack surface may be much larger than it first appears. The weakness class itself is also a well-known root cause category in secure engineering guidance, including NHIMG’s CWE Top 25 Guide.
How Organisations Check Exposure and Prioritise Response
Exposure assessment starts with asset inventory: identify which endpoints, mobile devices, embedded products, or browser-adjacent systems use the affected Qualcomm chipset family and whether they rely on the vulnerable graphics stack. Then verify whether those assets are internet-facing, externally reachable through remote management, or exposed through user-driven content rendering.
Defenders should compare their inventory against vendor advisories and the KEV record, then prioritise systems that are both exposed and operationally important. NHIMG’s Vulnerability Management Guide is useful here because KEV-driven prioritisation depends on scope, exception handling, and remediation tracking, not just finding a CVE string.
Remediation, Detection, and Post-Exploitation Review
When a patch is not yet available or cannot be deployed immediately, organisations should reduce exposure by limiting where vulnerable devices can be reached, restricting untrusted content paths, and tightening monitoring around crash patterns or abnormal graphics behaviour. If exploitation is suspected, the response should include compromise review, because a memory corruption issue can be a foothold rather than the end state.
Post-patch review matters as much as patching itself. Look for signs of persistence, secondary payloads, unusual child processes, or account/session abuse that followed the initial memory corruption event. For a broader view of how attackers turn exploited flaws into real-world compromise chains, see NHIMG’s State of NHI & AI Agent Breach Report 2026, which illustrates how initial access often becomes a wider intrusion path.
Risk and Threat Considerations
This vulnerability carries material risk because a graphics-driver memory corruption flaw can be reachable through everyday rendering activity and can be used in active exploitation. The main concern is not just instability, but the possibility of code execution, sandbox escape, or follow-on compromise on systems that trust the affected driver path.
Failure mechanism: Freed memory is reused before all references are gone, letting attacker-influenced data corrupt driver state or execution flow.
Impact: Systems may crash, leak data, or become compromiseable through a pathway that is difficult to observe without low-level telemetry.
Standards & Framework Alignment
This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.
NIST SP 800-53 Rev 5 and CIS Controls v8 set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| NIST SP 800-53 Rev 5 | SI-2 — Flaw Remediation | Actively exploited vulnerabilities require timely remediation and tracking. |
| RA-5 — Vulnerability Monitoring and Scanning | Exposure must be found through asset and vulnerability visibility. | |
| IR-4 — Incident Handling | Active exploitation calls for containment and post-exploitation review. | |
| Recommendation — Prioritise patching and remediation tracking for the affected chipset fleet. Scan assets and match them to vendor advisories before declaring risk closed. Investigate suspected compromise and preserve evidence after exploitation. | ||
| CIS Controls v8 | CIS-7 — Continuous Vulnerability Management | KEV-listed flaws fit continuous identification and remediation prioritisation. |
| CIS-8 — Audit Log Management | Detection and review depend on durable logging around exploitation activity. | |
| Recommendation — Use continuous vulnerability management to accelerate remediation of known exploited flaws. Centralise logs so crash, exploit, and follow-on activity can be reviewed. | ||
Practitioner Guidance
Why practitioners should care: Treat KEV-listed graphics-driver flaws as exposure problems, not just patch hygiene. If the vulnerable chipset is present in a business-critical fleet, remediation timing should be driven by exploitability and asset importance, not by generic maintenance windows.
What to watch for: Prioritise devices where graphics rendering is common, patch latency is high, or endpoint visibility is limited. Those conditions make it easier for an active exploit to blend into normal behaviour and harder to prove that compromise did not occur.
Practitioner takeaway: Pair patching with exposure reduction and compromise review, because memory corruption bugs in drivers can leave no obvious trace once the initial exploit has finished.