EUVD-2026-44657
GHSA-p93h-8pcw-45vc
Severity by source
AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Image codec OOB reads typically require a user to open a crafted file (UI:R) and can leak adjacent memory (C:L), contradicting vendor's C:N and UI:N assignments.
Primary rating from Vendor (huawei).
CVSS VectorVendor: huawei
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Lifecycle Timeline
1DescriptionCVE.org
Out-of-bounds read vulnerability in the image codec module. Impact: Successful exploitation of this vulnerability may affect service confidentiality.
AnalysisAI
Out-of-bounds read in HarmonyOS's image codec module allows a local attacker to cause service availability disruption, with the vendor description also noting potential confidentiality impact - a discrepancy with the CVSS C:N metric that warrants attention. All versions of Huawei HarmonyOS across consumer devices, vision products, wearables, and laptops are identified as affected per the July 2026 Huawei Security Bulletin. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The vulnerability requires local access to the affected HarmonyOS device (AV:L per CVSS vector); remote network-based exploitation is not supported by the current characterization. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The vendor-assigned CVSS 3.1 base score is 4.0 with vector AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L, indicating local attack vector, low complexity, no privileges required, no user interaction, and low availability impact only. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | A local attacker with access to a HarmonyOS device - through physical possession or an existing low-privilege session - delivers a specially crafted image file designed to trigger the out-of-bounds read in the codec module. When the image is processed by a gallery application, messaging client, or any system service that invokes the vulnerable codec, the overread causes the affected service to crash, resulting in a temporary availability loss. … |
| Remediation | Users should consult the Huawei July 2026 Security Bulletins - separately published for consumer devices, vision products, wearables, and laptops - to obtain exact patched firmware and OS versions. … Detailed patch versions, workarounds, and compensating controls in full report. |
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External POC / Exploit Code
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