CVE-2023-21646

Home/CVE/Transient DOS in Modem while processing invalid System Information Block 1.

CVE

Transient DOS in Modem while processing invalid System Information Block 1.

HIGH · CVSS 7.5 EPSS 0.00108

Schedule remediation

SSVC automatable: yes - attacks can be scripted at scale
CVSS base score ≥ 7.0

Sigma rules0 YARA rules0

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Weakness Classification

CWE-617Reachable Assertion

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Affected Products & Versions

qualcomm ar8035 firmwareall versions
qualcomm qca6390 firmwareall versions
qualcomm qca6391 firmwareall versions
qualcomm qca6574a firmwareall versions
qualcomm qca6595au firmwareall versions
qualcomm qca6696 firmwareall versions
qualcomm qca8081 firmwareall versions
qualcomm qca8337 firmwareall versions
Show all 54 affected productsqualcomm qcm6490 firmwareall versions
qualcomm qcn6024 firmwareall versions
qualcomm qcn9024 firmwareall versions
qualcomm qcs6490 firmwareall versions
qualcomm qcx315 firmwareall versions
qualcomm sa515m firmwareall versions
qualcomm sm8450 firmwareall versions
qualcomm sd480 firmwareall versions
qualcomm sd690 5g firmwareall versions
qualcomm sd695 firmwareall versions
qualcomm sd765 firmwareall versions
qualcomm sd765g firmwareall versions
qualcomm sd768g firmwareall versions
qualcomm sd778g firmwareall versions
qualcomm sd780g firmwareall versions
qualcomm sd865 5g firmwareall versions
qualcomm sd870 firmwareall versions
qualcomm sd888 5g firmwareall versions
qualcomm sdx55 firmwareall versions
qualcomm sdx55m firmwareall versions
qualcomm sdx65 firmwareall versions
qualcomm sdx70m firmwareall versions
qualcomm sm7250p firmwareall versions
qualcomm sm7325p firmwareall versions
qualcomm sm4375 firmwareall versions
qualcomm wcd9341 firmwareall versions
qualcomm wcd9360 firmwareall versions
qualcomm wcd9370 firmwareall versions
qualcomm wcd9375 firmwareall versions
qualcomm wcd9380 firmwareall versions
qualcomm wcd9385 firmwareall versions
qualcomm wcn3988 firmwareall versions
qualcomm wcn3991 firmwareall versions
qualcomm wcn3998 firmwareall versions
qualcomm wcn6740 firmwareall versions
qualcomm wcn6750 firmwareall versions
qualcomm wcn6850 firmwareall versions
qualcomm wcn6851 firmwareall versions
qualcomm wcn6855 firmwareall versions
qualcomm wcn6856 firmwareall versions
qualcomm wcn7850 firmwareall versions
qualcomm wcn7851 firmwareall versions
qualcomm wsa8810 firmwareall versions
qualcomm wsa8815 firmwareall versions
qualcomm wsa8830 firmwareall versions
qualcomm wsa8835 firmwareall versions

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Scoring & Timeline

7.5

HIGH · CVSS v3.1 · product-security@qualcomm.com

View on NVD

Attack Vector

Network Adjacent Local Physical

Attack Complexity

Low High

Privileges Required

None Low High

User Interaction

None Required

Scope

Unchanged Changed

Confidentiality

None Low High

Integrity

None Low High

Availability

None Low High

Published to NVD05 Sep 2023 · 07:15 AM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC triage · cisa-vulnrichment

Exploitation

none

Automatable

yes

Technical impact

partial

SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.

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Vendor Advisories

android-securityANDROID-2023-09-01High

🔗

References & Sources

Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.

https://www.qualcomm.com/company/product-security/bulletins/september-2023-bulletinVendor Advisory

Intelligence Graph · click any node to traverse

CVETechnique ActorTool Family

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External lookups - second-class, for what we don’t hold ourselves

NVD CVE.org CISA Vulners Exploit-DB GitHub PoC VulnCheck KEV GreyNoise

Vulnerabilities
CISA KEV catalog
CWE weaknesses
CAPEC attack patterns
Package vulnerabilities

Threat intelligence
Threat actors
Tools & malware
ATT&CK techniques
IOCs

Detection & defense
Sigma rules
YARA rules
Atomic Red Team tests
D3FEND countermeasures

Compliance
NIST 800-53
ISO 27001:2022
SOC 2 TSC
PCI-DSS v4.0
CIS Controls v8.1

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