EUVD-2026-62480
GHSA-gpwr-rgpw-7w8q
Severity by source
AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Physical boot media write access required (AV:P); specialized embedded RE expertise needed (AC:H); no software privileges required (PR:N); full firmware compromise yields complete CIA impact (C:H/I:H/A:H).
Primary rating from Vendor (mitre).
CVSS VectorVendor: mitre
Lifecycle Timeline
3DescriptionCVE.org
The Ingenic T31 SoC boot ROM flash-boot verification path compares only a single 32-bit word of the RSA signature output against a single 32-bit word of the SHA-256 payload digest, rather than compare the full data. This allows an attacker with physical write access to boot media to forge modified SPL (Secondary Program Loader) images that pass secure boot verification without possession of the OEM signing key. Each forgery attempt succeeds with approximately 2/3 probability. This has been validated via reverse engineering, software emulation against vendor-signed images, and end-to-end hardware acceptance of a forged firmware image on a Wyze Video Doorbell v2 (T31X).
AnalysisAI
Secure boot bypass in the Ingenic T31 SoC allows an attacker with physical write access to boot media to forge SPL (Secondary Program Loader) images that pass RSA signature verification without the OEM signing key. The boot ROM's flash-boot verification path compares only a single 32-bit word of the RSA signature output against a single 32-bit word of the SHA-256 payload digest - rather than validating the full cryptographic outputs - yielding a forgery success rate of approximately 2/3 per attempt. …
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
Free forever · No credit card required
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires physical write access to the boot media (NAND flash, eMMC, or SD card) of an Ingenic T31-based device - this is the absolute prerequisite and cannot be circumvented remotely. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | CVSS AV:P correctly limits the threat surface to actors with physical access to boot media, ruling out remote or network exploitation entirely - the EPSS score of 0.15% at the 5th percentile accurately reflects this constraint. … 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 has been identified at time of analysis for this boot ROM vulnerability; the flaw resides in mask ROM and cannot be corrected via software update in deployed hardware. … Detailed patch versions, workarounds, and compensating controls in full report. |
Threat intelligence, references, and detailed analysis are available after sign-in.
More in Jwt Attack
View allWhy is Microsoft republishing a CVE from 2013? We are republishing CVE-2013-3900 in the Security Update Guide to update
Authentication bypass in SimpleHelp 5.5.15 and prior (plus 6.0 pre-release builds) allows remote unauthenticated attacke
Authentication bypass in Fortinet FortiOS, FortiProxy, and FortiSwitchManager allows unauthenticated remote attackers to
ruby-saml provides security assertion markup language (SAML) single sign-on (SSO) for Ruby. Rated critical severity (CVS
ruby-saml provides security assertion markup language (SAML) single sign-on (SSO) for Ruby. Rated critical severity (CVS
The package jsrsasign before 10.5.25 are vulnerable to Improper Verification of Cryptographic Signature when JWS or JWT
A library injection vulnerability exists in Microsoft Teams (work or school) 24046.2813.2770.1094 for macOS. Rated criti
A library injection vulnerability exists in the WebView.app helper app of Microsoft Teams (work or school) 24046.2813.27
A library injection vulnerability exists in the com.microsoft.teams2.modulehost.app helper app of Microsoft Teams (work
The Ruby SAML library is for implementing the client side of a SAML authorization. Rated critical severity (CVSS 9.8), t
cosign is a container signing and verification utility. Rated critical severity (CVSS 9.8), this vulnerability is remote
Biscuit is an authentication and authorization token for microservices architectures. Rated critical severity (CVSS 9.8)
Same technique Information Disclosure
View allShare
External POC / Exploit Code
Leaving vuln.today