PatchSiren cyber security CVE debrief
CVE-2026-58550 Huawei CVE debrief
CVE-2026-58550 is an out-of-bounds read vulnerability in an image codec module, which may affect service confidentiality if exploited. The CVE was published on 2026-07-15T13:17:28.587Z and last modified on 2026-10-24T21:10:00.130Z. Huawei has provided several support bulletins related to this vulnerability. Defenders should assess exposure and prioritize patching, including reviewing inventory, applying patches, and monitoring for exploitation attempts. The vulnerability's scope and remediation require further verification from Huawei's official sources.
- Vendor
- Huawei
- Product
- HarmonyOS
- CVSS
- MEDIUM 4
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-07-15
- Original CVE updated
- 2026-10-24
- Advisory published
- 2026-07-15
- Advisory updated
- 2026-10-24
Who should care
Defenders responsible for systems using the affected image codec module should assess exposure and prioritize patching. This includes reviewing inventory, applying patches, and monitoring for exploitation attempts.
Why it matters
CVE-2026-58550 is an out-of-bounds read vulnerability in an image codec module that may affect service confidentiality. Defenders should prioritize verifying and applying patches from Huawei, as well as monitoring for potential exploitation attempts. The scope of affected systems and remediation require further verification from Huawei's official sources.
- Verify and apply patches to prevent potential exploitation
- Monitor for potential exploitation attempts to detect possible attacks
- Review and update inventory of affected systems to ensure comprehensive coverage
Technical summary
The vulnerability is an out-of-bounds read issue in the image codec module. Successful exploitation may affect service confidentiality. The CVSS score is 4 (Medium) with a vector of CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L. The vulnerability's technical details are limited, and further verification is needed to determine the full scope of the vulnerability. Defenders should prioritize verifying and applying patches from Huawei, as well as monitoring for potential exploitation attempts. The affected product context and defensive impact require further verification from Huawei's official sources.
Defensive priority
Defenders should prioritize verifying and applying patches from Huawei, as well as monitoring for potential exploitation attempts.
Recommended defensive actions
- Verify and apply patches from Huawei
- Monitor for potential exploitation attempts
- Review and update inventory of affected systems
- Check relevant monitoring, detection, and logs for exposed assets that need extra review
- Track exceptions, retest remediated assets, and close the item only after evidence is documented
- Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
- Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed
Evidence notes
The CVE record and NVD detail page provide information on the vulnerability, but its scope and remediation require further verification from Huawei's official sources. Defenders should verify and apply patches from Huawei, monitor for potential exploitation attempts, and review and update inventory of affected systems. The evidence is limited, and further verification is needed to determine the full scope of the vulnerability.
Sources and references
Verified primary and authoritative sources
-
CVE-2026-58550 CVE Program record
Publisher, destination, and source semantics verified
URL: https://www.cve.org/CVERecord?id=CVE-2026-58550
CVE Program - Official CVE Program record with source-provided CVE metadata.
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CVE-2026-58550 NVD vulnerability detail
Publisher, destination, and source semantics verified
URL: https://nvd.nist.gov/vuln/detail/CVE-2026-58550
NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.
Supplemental references
-
Source reference
Unverified legacy reference
URL: https://consumer.huawei.com/en/support/bulletin/2026/7/
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Source reference
Unverified legacy reference
URL: https://consumer.huawei.com/en/support/bulletinlaptops/2026/7/
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Source reference
Unverified legacy reference
URL: https://consumer.huawei.com/en/support/bulletinvision/2026/7/
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Source reference
Unverified legacy reference
URL: https://consumer.huawei.com/en/support/bulletinwearables/2026/7/
Methodology and review provenance
AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.