EUVD-2026-44656
GHSA-rppv-cc33-x627
Severity by source
AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
Local attack vector confirmed by description; PR:N as any installed app can invoke the codec; no integrity impact since the flaw is read-only; A:L retained for potential codec crash.
Primary rating from Vendor (huawei).
CVSS VectorVendor: huawei
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/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 exposes partial memory contents to local attackers, affecting service confidentiality with a secondary availability impact. The CVSS vector (AV:L/PR:N) scopes exploitation to the local device - reachable by any installed application capable of submitting image data to the vulnerable codec - without requiring elevated privileges. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires local code execution on a HarmonyOS device, confirmed by the CVSS AV:L metric - the attacker must have an application running on the device. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 base score of 5.1 (Medium) is consistent with a local, low-complexity, no-privilege-required memory disclosure: the local attack vector (AV:L) is the primary risk limiter, confining exploitation to code already executing on the target device. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker distributes a malicious HarmonyOS application that internally submits a specially crafted image file to the system image codec module, triggering the out-of-bounds read. The codec reads beyond the intended buffer boundary, leaking adjacent memory contents - potentially including in-memory tokens, session credentials, or other sensitive application state - back to the calling process. … |
| Remediation | Apply the July 2026 Huawei security update appropriate to your device category: smartphone and consumer device users should consult https://consumer.huawei.com/en/support/bulletin/2026/7/, smart vision device users should refer to https://consumer.huawei.com/en/support/bulletinvision/2026/7/, wearable users should check https://consumer.huawei.com/en/support/bulletinwearables/2026/7/, and laptop users should review https://consumer.huawei.com/en/support/bulletinlaptops/2026/7/. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-120 – Classic Buffer Overflow
View allSame technique Buffer Overflow
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External POC / Exploit Code
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