EUVD-2026-81332
GHSA-mmrx-9p44-fqhj
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Local low-privilege process supplies crafted external data; integer overflow yields OOB write enabling full memory corruption within the same subsystem, so AV:L/PR:L, S:U, C/I/A:H.
Primary rating from Vendor (qualcomm).
CVSS VectorVendor: qualcomm
Lifecycle Timeline
3DescriptionCVE.org
Memory Corruption when validating large data buffers from external sources using addition to check buffer length.
AnalysisAI
Local memory corruption in Qualcomm Snapdragon-based devices can be triggered by a low-privileged local attacker supplying a crafted large data buffer that overflows an additive length check. Successful exploitation grants high confidentiality, integrity, and availability impact within the affected component, matching a local privilege-escalation profile rather than a remote attack primitive. …
Unlock full vulnerability intelligence
- Risk assessment & exploitation conditions
- Attack chain visualization
- Remediation with exact patch versions
- Threat intelligence from 22 sources
- Personal watchlist & email alerts
No credit card · 7-day full trial
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires local access with at least low privilege on a Qualcomm Snapdragon-based device (AV:L/PR:L) - typically a malicious or compromised local app/process that can reach the vulnerable interface and supply an attacker-controlled 'large data buffer from an external source.' No user interaction is needed (UI:N). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H, score 7.8) describes a locally-exploitable, low-privilege memory-corruption flaw with full confidentiality/integrity/availability impact but no scope change - a classic local privilege-escalation profile, not a remote-attack primitive. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No vendor-released patch version is provided in the available data; consult the Qualcomm September 2026 security bulletin at https://docs.qualcomm.com/product/publicresources/securitybulletin/september-2026-bulletin.html for chipset-specific fixes and apply any vendor-supplied firmware or BSP updates as soon as they become available through the device manufacturer. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all Qualcomm Snapdragon-based devices and determine exposure, restrict local access to trusted users and applications, and monitor Qualcomm security advisories for CVE-2026-25290 because no vendor-released patch is identified at time of analysis; within 7 days, implement interim mitigations such as least privilege, application allowlisting, device hardening, and enhanced logging for suspicious local privilege-escalation activity, and validate whether affected chipset models can be identified from vendor guidance; within 30 days, apply the vendor patch as soon as Qualcomm publishes it, reassess affected devices, and update risk treatment plans if no patch becomes available.
Sign in for detailed remediation steps and compensating controls.
Threat intelligence, references, and detailed analysis are available after sign-in.
More in Snapdragon
View allRemote code execution in Qualcomm Snapdragon-based products allows unauthenticated network attackers to bypass authoriza
Memory corruption in Qualcomm Snapdragon Wi-Fi/NAN firmware allows an attacker within wireless range to overflow a stack
Buffer overflow in Qualcomm Snapdragon firmware enables authentication bypass on adjacent networks, allowing remote unau
Local privilege escalation in Qualcomm Snapdragon platforms allows a low-privilege on-device process or app to cross a t
Privilege escalation in Qualcomm Snapdragon devices allows a local low-privilege attacker to cross security boundaries a
Local privilege escalation and memory corruption in Qualcomm Snapdragon WLAN firmware occurs when the driver parses malf
Stack-based memory corruption in Qualcomm Snapdragon firmware allows a locally-resident, low-privileged process to overf
Memory corruption in Qualcomm Snapdragon Strongbox component allows local low-privileged attackers to trigger a buffer o
Local privilege escalation in Qualcomm Snapdragon chipsets stems from an out-of-bounds memory access in the Strongbox tr
Memory corruption in Qualcomm Snapdragon chipsets allows adjacent network attackers to achieve arbitrary code execution
Bootloader integrity bypass in Qualcomm Snapdragon platforms allows a high-privileged local attacker to write to a speci
Authentication bypass in Qualcomm Snapdragon SoCs allows adjacent network attackers to exploit a cryptographic flaw duri
Same weakness CWE-190 – Integer Overflow or Wraparound
View allSame technique Buffer Overflow
View allShare
External POC / Exploit Code
Leaving vuln.today