EUVD-2026-55094
GHSA-5g8v-hhjf-5g8c
Severity by source
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Local vector confirmed by description; PR:N per CVSS 4.0 input; limited C/I/A impact consistent with OOB write in codec process without confirmed privilege escalation.
Primary rating from Vendor (SamsungMobile).
CVSS VectorVendor: SamsungMobile
Lifecycle Timeline
2DescriptionCVE.org
Incorrect conversion between numeric types in VC1 codec in libsavsvc.so prior to SMR Aug-2026 Release 1 allows local attackers to write out-of-bounds memory.
AnalysisAI
Out-of-bounds memory write in Samsung's VC1 codec library libsavsvc.so allows local attackers to corrupt process memory on affected Samsung mobile devices. The root cause is an incorrect numeric type conversion during VC1 video decoding, a class of error that can produce exploitable integer truncation or overflow conditions leading to heap or stack corruption. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires local access to the device - specifically, the ability to execute code (e.g., a locally installed application) or deliver a crafted VC1 media stream for processing by libsavsvc.so. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 base score of 5.1 with a Local attack vector (AV:L) appropriately reflects the access constraint: exploitation requires code or media already present on the device. … 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 | Apply Samsung's SMR Aug-2026 Release 1 security update, which contains the patched version of libsavsvc.so. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-681 – Incorrect Conversion between Numeric Types
View allSame technique Buffer Overflow
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External POC / Exploit Code
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