What is CVE-2025-21483?

CVE-2025-21483 is a critical-severity vulnerability in Qualcomm Apq8017, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2025-09-24.

How severe is CVE-2025-21483?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2025-21483 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Qualcomm Apq8017

CVE-2025-21483

Memory corruption when the UE receives an RTP packet from the network, during the reassembly of NALUs.

Vulnerability class: Buffer Overflow

EPSS: 0.004 (30.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

Public proof-of-concept exploits

ARPSyndicate/cve-scores

References

product-security@qualcomm.com (Vendor Advisory)

Frequently asked questions

What is CVE-2025-21483?: CVE-2025-21483 is a critical-severity vulnerability in Qualcomm Apq8017, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2025-09-24.
How severe is CVE-2025-21483?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2025-21483 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.