EUVD-2026-92978
GHSA-5mfp-688h-g4r8
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Local foothold with low privilege is needed (AV:L/PR:L/AC:L); a signature-bypass that mounts unsigned images is fundamentally an integrity failure, so I:H (vendor's I:N looks understated), with C:H and A:H retained.
Primary rating from Vendor (qualcomm).
CVSS VectorVendor: qualcomm
Lifecycle Timeline
3DescriptionCVE.org
Cryptographic Issue when processing non-ELF partitions, authentication and signature checks are bypassed, allowing unsigned or corrupted images to be mounted and processed.
AnalysisAI
Qualcomm Snapdragon firmware skips authentication and cryptographic signature checks when processing non-ELF partition images, allowing an attacker with local low-privileged access to stage and mount unsigned or corrupted images that the device then trusts. The flaw carries a 7.1 CVSS score (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H) and maps to CWE-347; no public exploit code and no CISA KEV entry were identified at time of analysis, and because exploitation is not remote and requires an existing on-device foothold or physical/debug access, it is a moderate-priority local issue rather than a mass-exploitation threat.
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation is triggered specifically when the device processes NON-ELF partition images - for these partitions the authentication and cryptographic signature checks are bypassed, allowing an unsigned or corrupted image to be mounted and processed. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a moderate-priority, locally-exploitable flaw rather than a mass-exploitation threat. … 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 | Qualcomm's October 2026 Security Bulletin (https://docs.qualcomm.com/product/publicresources/securitybulletin/october-2026-bulletin.html) is the authoritative source for fixed firmware; because Qualcomm ships Snapdragon fixes through OEM/SoC integrators, apply the patched firmware and bootloader images it lists for your specific chipset by obtaining the vendor/OEM update (patch available per vendor advisory; no specific fix version is enumerated in the provided data, so do not assume a version number). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, confirm exposure by inventorying all Qualcomm Snapdragon-based devices and checking Qualcomm's security advisory for CVE-2026-25302 to identify affected chipsets and any available fixed firmware version. …
Sign in for detailed remediation steps and compensating controls.
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External POC / Exploit Code
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