PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-21115 Samsung Mobile CVE debrief

This PatchSiren debrief is based on the supplied CVE record and source item. The CVE record was published on 2026-10-12T04:57:30.596Z and has not been modified since then. The vulnerability exists in libcodec2-sec-flacdec.so prior to SMR Oct-2026 Release 1 and allows local attackers to write out-of-bounds memory. Defenders responsible for Samsung Mobile Devices should assess exposure and prioritize verification and potential updates or compensating controls. The CVE record and source item provide limited information about the vulnerability.

Vendor
Samsung Mobile
Product
Samsung Mobile Devices
CVSS
MEDIUM 5.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-10-12
Original CVE updated
2026-10-12
Advisory published
2026-10-12
Advisory updated
2026-10-12

Who should care

Defenders responsible for Samsung Mobile Devices should assess exposure and prioritize verification and potential updates or compensating controls.

Why it matters

Defenders should prioritize verifying exposure in Samsung Mobile Devices and assessing the need for updates or compensating controls due to the potential for local attackers to write out-of-bounds memory.

  • Verify potential for local attackers to write out-of-bounds memory
  • Assess the need for updates or compensating controls in Samsung Mobile Devices
  • Monitor for potential local attacks

Technical summary

The vulnerability exists in libcodec2-sec-flacdec.so prior to SMR Oct-2026 Release 1 and allows local attackers to write out-of-bounds memory, potentially leading to unspecified impacts. This issue is relevant to defenders responsible for Samsung Mobile Devices, who should assess exposure and prioritize verification and potential updates or compensating controls. The CVE record and source item provide limited information about the vulnerability, including its existence in libcodec2-sec-flacdec.so prior to SMR Oct-2026 Release 1 and the potential for local attacks.

Defensive priority

Defenders should prioritize verifying exposure in Samsung Mobile Devices and assessing the need for updates or compensating controls.

Recommended defensive actions

  • Verify exposure in Samsung Mobile Devices
  • Assess the need for updates or compensating controls
  • Monitor for potential local attacks

Evidence notes

The CVE record and source item provide limited information about the vulnerability, including its existence in libcodec2-sec-flacdec.so prior to SMR Oct-2026 Release 1 and the potential for local attackers to write out-of-bounds memory.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-21115 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-21115

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-21115 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-21115

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • CVE-2026-21115

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/21xxx/CVE-2026-21115.json

    cve_program_cvelist_v5

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.