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PatchSiren cyber security CVE debrief

CVE-2026-25290 Qualcomm, Inc. CVE debrief

A memory corruption vulnerability exists when validating large data buffers from external sources using addition to check buffer length. This issue has a CVSS score of 7.8 and is classified as HIGH severity. The CVE record was published on 2026-09-17T05:17:01.650Z and was last modified on 2026-09-18T19:06:08.407Z. Defenders responsible for systems that handle large data buffers from external sources should assess exposure and prioritize verification and mitigation. The vulnerability affects systems that process large data buffers, potentially leading to system instability or crashes. Verification of system vulnerability status is required to determine potential impact.

Vendor
Qualcomm, Inc.
Product
Snapdragon
CVSS
HIGH 7.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-09-17
Original CVE updated
2026-09-18
Advisory published
2026-09-17
Advisory updated
2026-09-18

Who should care

Defenders responsible for systems that handle large data buffers from external sources should assess exposure and prioritize verification and mitigation.

Why it matters

CVE-2026-25290 is a memory corruption vulnerability that exists when validating large data buffers from external sources. Defenders should prioritize verifying the vulnerability status of affected systems and applying patches or mitigations as available.

  • Verification of system vulnerability status is required to determine potential impact
  • Potential memory corruption could lead to system instability or crashes
  • Defenders should prioritize patching or applying mitigations to prevent potential exploitation

Technical summary

The vulnerability exists when validating large data buffers from external sources using addition to check buffer length. This issue has a CVSS score of 7.8 and is classified as HIGH severity. The vulnerability affects systems that process large data buffers, potentially leading to memory corruption. Defenders should prioritize verifying the vulnerability status of affected systems and applying patches or mitigations as available.

Defensive priority

Defenders should prioritize verifying the vulnerability status of affected systems and applying patches or mitigations as available.

Recommended defensive actions

  • Verify the vulnerability status of systems that handle large data buffers from external sources
  • Apply patches or mitigations as available
  • Monitor system logs for potential exploitation attempts

Evidence notes

The CVE record and NVD entry provide limited information about the vulnerability. Further verification is required to determine the affected systems and potential impact.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-25290 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-25290

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

  • CVE-2026-25290 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-25290

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

Supplemental references

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.