Memory Corruption when allocating memory with sizes that exceed the maximum allowed value.
CVE-2026-21379
HIGHPre-NVD 7.87.8
EchelonGraph scoreLOW confidence
This high-severity CVE scores 7.8 under the CNA's CVSS (NVD's own analysis pending). EPSS exploit-prediction score not yet available (the EPSS model rescores nightly; freshly-published CVEs typically appear within 48 hours). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: cna:qualcomm
7.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: —CVSS: 7.8Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.8
- EG Score
- 7.8(low)
- EPSS
- —
- KEV
- Not listed
Published
July 6, 2026
Last Modified
July 7, 2026
Advisory Details (1)
Auto-updated Jul 7, 2026No patch confirmed yet.
generic
Qualcomm Documentation
https://docs.qualcomm.com/product/publicresources/securitybulletin/july-2026-bulletin.htmlVendor Advisories for CVE-2026-21379(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 2× in last 7d / 2× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-06 20:30 UTCEG score recompute
- 2026-07-06 20:29 UTCMITRE cvelistV5first tracked
Frequently asked(4)
What is CVE-2026-21379?
CVE-2026-21379 is a high vulnerability published on July 6, 2026. Memory Corruption when allocating memory with sizes that exceed the maximum allowed value.
When was CVE-2026-21379 disclosed?
CVE-2026-21379 was first published in the National Vulnerability Database on July 6, 2026, with the most recent update on July 7, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
What is the CVSS score of CVE-2026-21379?
CVE-2026-21379 has a CVSS v3 base score of 7.8 (NVD). The EG score is currently aggregating — additional source signals are being incorporated as they become available..
How do I remediate CVE-2026-21379?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-21379, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-21379
Is Your Infrastructure Affected by CVE-2026-21379?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.