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CVE-2025-21487

Buffer Over-read in Data Network Stack & Connectivity

8.2 High

Information disclosure while decoding RTP packet received by UE from the network, when payload length mentioned is greater than the available buffer length.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
None
Availability
Low

Exploit likelihood

0.27%Up 0.2 points since Sep 25, 2025
90%50%10%1%

What each source reports

CVE List Score used 8.2

Buffer Over-read in Data Network Stack & Connectivity

Information disclosure while decoding RTP packet received by UE from the network, when payload length mentioned is greater than the available buffer length.

Record
CVE-2025-21487
CVSS 3.1
8.2 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L
Weakness
CWE-126
Updated
2026-11-02
EUVDEUVD-2025-30999 8.2

Information disclosure while decoding RTP packet received by UE from the network, when payload length mentioned is greater than the available buffer length.

Record
EUVD-2025-30999
CVSS 3.1
8.2 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L
Updated
2026-11-02
GitHub AdvisoriesGHSA-j4c6-9q52-52q7 8.2

Information disclosure while decoding RTP packet received by UE from the network, when payload...

Information disclosure while decoding RTP packet received by UE from the network, when payload length mentioned is greater than the available buffer length.

Record
GHSA-j4c6-9q52-52q7
CVSS 3.1
8.2 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L
Weakness
CWE-126
Updated
2026-11-02
NVD 8.2

Information disclosure while decoding RTP packet received by UE from the network, when payload length mentioned is greater than the available buffer length.

Record
CVE-2025-21487
CVSS 3.1
8.2 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L
Weakness
CWE-126
Updated
2026-11-02

Affected products

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History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-21487 is a high vulnerability (CVSS 8.2) in Qualcomm 205 Mobile Platform Firmware, published September 24, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.27%, the 19th percentile. No source names a fixed version.

References

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