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Aqt1000 Firmware CVE-2021-30259

HIGH
Out-of-bounds Read (CWE-125)
2021-11-12 product-security@qualcomm.com
Buffer Overflow Information Disclosure Qualcomm Aqt1000 Firmware Ar8031 Firmware Ar8035 Firmware Csra6620 Firmware Csra6640 Firmware Csrb31024 Firmware Mdm9250 Firmware Qca6174a Firmware Qca6310 Firmware Qca6320 Firmware Qca6335 Firmware Qca6391 Firmware Qca6420 Firmware Qca6421 Firmware Qca6426 Firmware Qca6430 Firmware Qca6431 Firmware Qca6436 Firmware Qca6564 Firmware Qca6564a Firmware Qca6564au Firmware Qca6574 Firmware Qca6574a Firmware Qca6574au Firmware Qca6584au Firmware Qca6595 Firmware Qca6595au Firmware Qca6696 Firmware Qca8081 Firmware Qca8337 Firmware Qca9377 Firmware Qca9984 Firmware Qcm2290 Firmware Qcm4290 Firmware Qcm6125 Firmware Qcm6490 Firmware Qcs2290 Firmware Qcs410 Firmware Qcs4290 Firmware Qcs610 Firmware Qcs6125 Firmware Qcs6490 Firmware Qrb5165n Firmware Qsm8250 Firmware Qsm8350 Firmware Sa6145p Firmware Sa6150p Firmware Sa6155 Firmware Sa6155p Firmware Sa8145p Firmware Sa8150p Firmware Sa8155 Firmware Sa8155p Firmware Sa8195p Firmware Sd 455 Firmware Sd 675 Firmware Sd 8cx Firmware Sd460 Firmware Sd660 Firmware Sd662 Firmware Sd670 Firmware Sd675 Firmware Sd730 Firmware Sd835 Firmware Sd855 Firmware Sd865 5g Firmware Sd888 Firmware Sdx55 Firmware Sm4125 Firmware Sm6250 Firmware Sm6250p Firmware Wcd9306 Firmware Wcd9326 Firmware Wcd9335 Firmware Wcd9340 Firmware Wcd9341 Firmware Wcd9360 Firmware Wcd9370 Firmware Wcd9371 Firmware Wcd9375 Firmware Wcd9380 Firmware Wcd9385 Firmware Wcn3610 Firmware Wcn3620 Firmware Wcn3660b Firmware Wcn3910 Firmware Wcn3950 Firmware Wcn3980 Firmware Wcn3988 Firmware Wcn3990 Firmware Wcn6740 Firmware Wsa8810 Firmware Wsa8815 Firmware Wsa8830 Firmware Wsa8835 Firmware Sc8180X Sdx55 Firmware Qca4004 Firmware Wcn3999 Firmware Qca6175A Firmware Mdm9650 Firmware Wcn6750 Firmware Wcn6855 Firmware Wcn6856 Firmware Wcn7850 Firmware Wcn7851 Firmware Sdm630 Firmware Mdm9655 Firmware Sdx20 Firmware Sd845 Firmware Sd850 Firmware Sdx24 Firmware Sd 636 Firmware Mdm9150 Firmware Qcs605 Firmware Qcs405 Firmware Mdm9205 Firmware Qca6390 Firmware Sa415M Firmware Sa515M Firmware Qrb5165 Firmware Sdx55M Firmware Sm7250 Firmware Qcs603 Firmware Sda429W Firmware Sdm830 Firmware Sdx50M Firmware Sd 8C Firmware Sd665 Firmware Sd690 5G Firmware Sd710 Firmware Sd712 Firmware Sd720G Firmware Sd750G Firmware Sd765 Firmware Sd765G Firmware Sd768G Firmware Sd7C Firmware Sd888 5G Firmware Sdxr1 Firmware Sdxr2 5G Firmware Wcn3991 Firmware Wcn3998 Firmware Wcn6850 Firmware Wcn6851 Firmware Whs9410 Firmware Sd678 Firmware Sd870 Firmware Sd480 Firmware Sd778G Firmware Sd780G Firmware Sm7325 Firmware Sdx12 Firmware Qcx315 Firmware Sdx65 Firmware Sm6225 Firmware Sm6375 Firmware Sm8450 Firmware Sm8450P Firmware
7.8
CVSS 3.1 · Vendor: qualcomm
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Vulnerability Assessment

Weakness
CWE
ASVS 5.0
V15 - Secure Coding and Architecture Bounds checking, read limits
MITRE ATT&CK

1 technique across 1 tactic: Collection

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 7.8 (HIGH). Attack characteristics: local attack vector, low complexity, low privileges required, no user interaction not required.

Exploit ScenarioDerived

A local attacker with access to the system could read data from memory outside the intended buffer boundaries.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.1% exploitation probability (EPSS)

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AnalysisAI

Possible out of bound access due to improper validation of function table entries in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT,. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate array indices and buffer lengths. Use memory-safe languages. Enable AddressSanitizer during testing.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Out-of-bounds Read (CWE-125), which allows attackers to read data from memory outside the intended buffer boundaries. Possible out of bound access due to improper validation of function table entries in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking Affected products include: Qualcomm Aqt1000 Firmware, Qualcomm Ar8031 Firmware, Qualcomm Ar8035 Firmware, Qualcomm Csra6620 Firmware, Qualcomm Csra6640 Firmware.

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  • Check this CVE against your own stack and servers
  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (qualcomm) PRIMARY 7.8 HIGH
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from Vendor (qualcomm) · only source for this CVE.

CVSS VectorVendor: qualcomm

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionCVE.org

Possible out of bound access due to improper validation of function table entries in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking

Threat Intelligence Overview

EPSS Score
0.1%
Top 95% exploitable
Data Quality
2 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.1%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Defer
Exploitation· derived
None
System Exposure· derived
Small
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

39
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +39
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)CVE.org

cpe:2.3:o:qualcomm:aqt1000_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:ar8031_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:ar8035_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:csra6620_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:csra6640_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:csrb31024_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:mdm9150_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:mdm9205_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:mdm9250_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:mdm9650_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:mdm9655_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca4004_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6174a_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6175a_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6310_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6320_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6335_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6390_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6391_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6420_firmware:-:*:*:*:*:*:*:*
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