CVE-2025-21481

HIGH
2025-09-24 [email protected]
7.8
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Mar 28, 2026 - 19:13 vuln.today
CVE Published
Sep 24, 2025 - 16:15 nvd
HIGH 7.8

Tags

Buffer Overflow 315 5g Iot Modem Firmware Aqt1000 Firmware Ar8031 Firmware Ar8035 Firmware C V2x 9150 Firmware Sm6250p Firmware Sm6370 Firmware Sm6650 Firmware Sm7250p Firmware Sm7315 Firmware Sm7325p Firmware Sm7635 Firmware Sm7675 Firmware Sm7675p Firmware Sm8635 Firmware Sm8635p Firmware Sm8650q Firmware Sm8735 Firmware Sm8750 Firmware Sm8750p Firmware Smart Audio 400 Platform Firmware Snapdragon 4 Gen 1 Mobile Platform Firmware Snapdragon 460 Mobile Platform Firmware Snapdragon 480 5g Mobile Platform Firmware Snapdragon 480 5G Mobile Platform Sm4350 Ac Firmware Snapdragon 662 Mobile Platform Firmware Snapdragon 665 Mobile Platform Firmware Snapdragon 670 Mobile Platform Firmware Snapdragon 675 Mobile Platform Firmware Snapdragon 678 Mobile Platform Sm6150 Ac Firmware Snapdragon 680 4g Mobile Platform Firmware Snapdragon 685 4G Mobile Platform Sm6225 Ad Firmware Snapdragon 690 5g Mobile Platform Firmware Snapdragon 695 5g Mobile Platform Firmware Snapdragon 710 Mobile Platform Firmware Snapdragon 720g Mobile Platform Firmware Snapdragon 730 Mobile Platform Sm7150 Aa Firmware Snapdragon 730G Mobile Platform Sm7150 Ab Firmware Snapdragon 732G Mobile Platform Sm7150 Ac Firmware Snapdragon 750g 5g Mobile Platform Firmware Snapdragon 765 5G Mobile Platform Sm7250 Aa Firmware Snapdragon 765G 5G Mobile Platform Sm7250 Ab Firmware Snapdragon 768G 5G Mobile Platform Sm7250 Ac Firmware Snapdragon 778g 5g Mobile Platform Firmware Snapdragon 778G 5G Mobile Platform Sm7325 Ae Firmware Csra6620 Firmware Csra6640 Firmware Fastconnect 6200 Firmware Fastconnect 6700 Firmware Fastconnect 6800 Firmware Fastconnect 6900 Firmware Fastconnect 7800 Firmware Flight Rb5 5g Platform Firmware Qam8255p Firmware Qam8295p Firmware Qam8620p Firmware Qam8650p Firmware Qam8775p Firmware Qamsrv1h Firmware Qamsrv1m Firmware Qca6174a Firmware Qca6391 Firmware Qca6420 Firmware Qca6421 Firmware Qca6426 Firmware Qca6430 Firmware Qca6431 Firmware Qca6436 Firmware Qca6574 Firmware Qca6574a Firmware Qca6574au Firmware Qca6584au Firmware Qca6595 Firmware Qca6595au Firmware Qca6678aq Firmware Qca6688aq Firmware Qca6696 Firmware Qca6698aq Firmware Qca6797aq Firmware Qca8081 Firmware Qca8337 Firmware Qcc710 Firmware Qcm2290 Firmware Qcm4290 Firmware Qcm5430 Firmware Snapdragon 780g 5g Mobile Platform Firmware Snapdragon 782G Mobile Platform Sm7325 Af Firmware Snapdragon 7C Compute Platform Sc7180 Ac Firmware Snapdragon 7C Gen 2 Compute Platform Sc7180 Ad Rennell Pro Firmware Snapdragon 7C Gen 3 Compute Firmware Snapdragon 8 Gen 1 Mobile Platform Firmware Snapdragon 8 Gen 3 Mobile Platform Firmware Snapdragon 855 Mobile Platform Firmware Snapdragon 855 860 Mobile Platform Sm8150 Ac Firmware Snapdragon 865 5g Mobile Platform Firmware Snapdragon 865 5G Mobile Platform Sm8250 Ab Firmware Snapdragon 870 5G Mobile Platform Sm8250 Ac Firmware Snapdragon 888 5g Mobile Platform Firmware Snapdragon 888 5G Mobile Platform Sm8350 Ac Firmware Snapdragon 8C Compute Platform Sc8180X Ad Firmware Snapdragon 8C Compute Platform Sc8180Xp Ad Firmware Snapdragon 8Cx Compute Platform Sc8180X Aa Firmware Snapdragon 8Cx Compute Platform Sc8180X Ab Firmware Snapdragon 8Cx Compute Platform Sc8180Xp Ac Firmware Snapdragon 8Cx Compute Platform Sc8180Xp Af Firmware Snapdragon 8Cx Gen 2 5G Compute Platform Sc8180X Ac Firmware Snapdragon 8Cx Gen 2 5G Compute Platform Sc8180X Af Firmware Snapdragon 8Cx Gen 2 5G Compute Platform Sc8180Xp Aa Firmware Snapdragon 8Cx Gen 2 5G Compute Platform Sc8180Xp Ab Firmware Snapdragon 8Cx Gen 3 Compute Platform Sc8280Xp Ab Firmware Snapdragon 8Cx Gen 3 Compute Platform Sc8280Xp Bb Firmware Snapdragon Auto 5g Modem Rf Firmware Snapdragon Auto 5g Modem Rf Gen 2 Firmware Snapdragon W5 Gen 1 Wearable Platform Firmware Snapdragon X35 5g Modem Rf System Firmware Snapdragon X50 5g Modem Rf System Firmware Snapdragon X55 5g Modem Rf System Firmware Snapdragon X62 5g Modem Rf System Firmware Snapdragon X65 5g Modem Rf System Firmware Snapdragon X72 5g Modem Rf System Firmware Snapdragon X75 5g Modem Rf System Firmware Snapdragon Xr1 Platform Firmware Snapdragon Xr2 5g Platform Firmware Snapdragon Xr2 Gen 1 Platform Firmware Snapdragon Auto 4g Modem Firmware Qcm6125 Firmware Qcm6490 Firmware Qcm8550 Firmware Qcn6024 Firmware Qcn6224 Firmware Qcn6274 Firmware Qcn7606 Firmware Qcn9024 Firmware Qcn9074 Firmware Qcn9274 Firmware Qcs2290 Firmware Qcs410 Firmware Qcs4290 Firmware Qcs5430 Firmware Qcs610 Firmware Qcs6125 Firmware Qcs6490 Firmware Qcs8300 Firmware Qcs8550 Firmware Qcs9100 Firmware Qdu1000 Firmware Qdu1010 Firmware Qdu1110 Firmware Qdu1210 Firmware Qdx1010 Firmware Qdx1011 Firmware Qep8111 Firmware Qfw7114 Firmware Qfw7124 Firmware Qmp1000 Firmware Qrb5165m Firmware Qrb5165n Firmware Qru1032 Firmware Qru1052 Firmware Qru1062 Firmware Qsm8250 Firmware Qsm8350 Firmware Video Collaboration Vc1 Platform Firmware Video Collaboration Vc3 Platform Firmware Robotics Rb2 Firmware Srv1h Firmware Srv1l Firmware Srv1m Firmware Sw5100 Firmware Sw5100p Firmware Sxr1120 Firmware Sxr2130 Firmware Sxr2330p Firmware Wcd9326 Firmware Wcd9335 Firmware Wcd9340 Firmware Wcd9341 Firmware Wcd9360 Firmware Wcd9370 Firmware Wcd9371 Firmware Wcd9375 Firmware Wcd9378 Firmware Wcd9380 Firmware Wcd9385 Firmware Wcd9390 Firmware Wcd9395 Firmware Wcn3910 Firmware Wcn3950 Firmware Wcn3980 Firmware Wcn3988 Firmware Wcn3990 Firmware Wcn3999 Firmware Wcn6450 Firmware Wcn6650 Firmware Wcn6740 Firmware Wcn6755 Firmware Wcn7750 Firmware Wcn7860 Firmware Wcn7861 Firmware Wcn7880 Firmware Wcn7881 Firmware Wsa8810 Firmware Wsa8815 Firmware Wsa8830 Firmware Wsa8832 Firmware Robotics Rb5 Firmware Sa2150p Firmware Sa4150p Firmware Sa4155p Firmware Sa6145p Firmware Sa6150p Firmware Sa6155 Firmware Sa6155p Firmware Sa7255p Firmware Sa7775p Firmware Sa8145p Firmware Sa8150p Firmware Sa8155 Firmware Sa8155p Firmware Sa8195p Firmware Sa8255p Firmware Sa8295p Firmware Sa8530p Firmware Sa8540p Firmware Sa8620p Firmware Sa8650p Firmware Sa8770p Firmware Sa8775p Firmware Sa9000p Firmware Sc8180X Sdx55 Firmware Sc8380xp Firmware Sd 675 Firmware Sd 8 Gen1 5g Firmware Sd670 Firmware Sd675 Firmware Sd730 Firmware Sd855 Firmware Sd865 5g Firmware Sd888 Firmware Sdx55 Firmware Sdx61 Firmware Sg4150p Firmware Sm4125 Firmware Sm4635 Firmware Sm6250 Firmware Wsa8835 Firmware Wsa8840 Firmware Wsa8845 Firmware Wsa8845h Firmware

Description

Memory corruption while performing private key encryption in trusted application.

Analysis

Memory corruption while performing private key encryption in trusted application. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.

Technical Context

This vulnerability is classified as Buffer Copy without Size Check (CWE-120), which allows attackers to overflow a buffer to corrupt adjacent memory. Memory corruption while performing private key encryption in trusted application. Affected products include: Qualcomm 315 5G Iot Modem Firmware, Qualcomm Aqt1000 Firmware, Qualcomm Ar8031 Firmware, Qualcomm Ar8035 Firmware, Qualcomm C-V2X 9150 Firmware.

Affected Products

Qualcomm 315 5G Iot Modem Firmware, Qualcomm Aqt1000 Firmware, Qualcomm Ar8031 Firmware, Qualcomm Ar8035 Firmware, Qualcomm C-V2X 9150 Firmware.

Remediation

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Always validate buffer sizes before copy operations. Use bounded functions (strncpy, snprintf). Enable compiler protections.

Priority Score

39
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +39
POC: 0

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CVE-2025-21481 vulnerability details – vuln.today

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