CVE-2021-30261

Possible integer and heap overflow due to lack of input command size validation while handling beacon template update command from HLOS in Snapdragon Auto, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables

Published: 2021-09-17 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-30261 is rated Low Risk (35.5/100): CVSS High severity, with low exploitation likelihood (EPSS 0.16%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2021-30261

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.03% 0.16% +0.12%
2 2025-03-30 0.07% 0.03% -0.03%
3 2025-03-29 — 0.07% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-30261

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.4 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.5 5.9 [email protected]
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.9 [email protected]
7.2 2.0 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 3.9 10.0 [email protected]

Weakness enumeration for CVE-2021-30261

Affected software / configurations for CVE-2021-30261

Vendor Product Version Raw CPE
qualcomm apq8009_firmware — cpe:2.3:o:qualcomm:apq8009_firmware:-:*:*:*:*:*:*:*
qualcomm apq8009w_firmware — cpe:2.3:o:qualcomm:apq8009w_firmware:-:*:*:*:*:*:*:*
qualcomm apq8017_firmware — cpe:2.3:o:qualcomm:apq8017_firmware:-:*:*:*:*:*:*:*
qualcomm apq8037_firmware — cpe:2.3:o:qualcomm:apq8037_firmware:-:*:*:*:*:*:*:*
qualcomm apq8053_firmware — cpe:2.3:o:qualcomm:apq8053_firmware:-:*:*:*:*:*:*:*
qualcomm apq8084_firmware — cpe:2.3:o:qualcomm:apq8084_firmware:-:*:*:*:*:*:*:*
qualcomm apq8096au_firmware — cpe:2.3:o:qualcomm:apq8096au_firmware:-:*:*:*:*:*:*:*
qualcomm aqt1000_firmware — cpe:2.3:o:qualcomm:aqt1000_firmware:-:*:*:*:*:*:*:*
qualcomm ar6003_firmware — cpe:2.3:o:qualcomm:ar6003_firmware:-:*:*:*:*:*:*:*
qualcomm csr6030_firmware — cpe:2.3:o:qualcomm:csr6030_firmware:-:*:*:*:*:*:*:*
qualcomm csrb31024_firmware — cpe:2.3:o:qualcomm:csrb31024_firmware:-:*:*:*:*:*:*:*
qualcomm mdm8207_firmware — cpe:2.3:o:qualcomm:mdm8207_firmware:-:*:*:*:*:*:*:*
qualcomm mdm8215_firmware — cpe:2.3:o:qualcomm:mdm8215_firmware:-:*:*:*:*:*:*:*
qualcomm mdm8215m_firmware — cpe:2.3:o:qualcomm:mdm8215m_firmware:-:*:*:*:*:*:*:*
qualcomm mdm8615m_firmware — cpe:2.3:o:qualcomm:mdm8615m_firmware:-:*:*:*:*:*:*:*
qualcomm mdm9150_firmware — cpe:2.3:o:qualcomm:mdm9150_firmware:-:*:*:*:*:*:*:*
qualcomm mdm9205_firmware — cpe:2.3:o:qualcomm:mdm9205_firmware:-:*:*:*:*:*:*:*
qualcomm mdm9206_firmware — cpe:2.3:o:qualcomm:mdm9206_firmware:-:*:*:*:*:*:*:*
qualcomm mdm9207_firmware — cpe:2.3:o:qualcomm:mdm9207_firmware:-:*:*:*:*:*:*:*
qualcomm mdm9215_firmware — cpe:2.3:o:qualcomm:mdm9215_firmware:-:*:*:*:*:*:*:*
qualcomm mdm9230_firmware — cpe:2.3:o:qualcomm:mdm9230_firmware:-:*:*:*:*:*:*:*
qualcomm mdm9250_firmware — cpe:2.3:o:qualcomm:mdm9250_firmware:-:*:*:*:*:*:*:*
qualcomm mdm9310_firmware — cpe:2.3:o:qualcomm:mdm9310_firmware:-:*:*:*:*:*:*:*
qualcomm mdm9330_firmware — cpe:2.3:o:qualcomm:mdm9330_firmware:-:*:*:*:*:*:*:*
qualcomm mdm9607_firmware — cpe:2.3:o:qualcomm:mdm9607_firmware:-:*:*:*:*:*:*:*
qualcomm mdm9615_firmware — cpe:2.3:o:qualcomm:mdm9615_firmware:-:*:*:*:*:*:*:*
qualcomm mdm9615m_firmware — cpe:2.3:o:qualcomm:mdm9615m_firmware:-:*:*:*:*:*:*:*
qualcomm mdm9625_firmware — cpe:2.3:o:qualcomm:mdm9625_firmware:-:*:*:*:*:*:*:*
qualcomm mdm9628_firmware — cpe:2.3:o:qualcomm:mdm9628_firmware:-:*:*:*:*:*:*:*
qualcomm mdm9630_firmware — cpe:2.3:o:qualcomm:mdm9630_firmware:-:*:*:*:*:*:*:*
qualcomm mdm9635m_firmware — cpe:2.3:o:qualcomm:mdm9635m_firmware:-:*:*:*:*:*:*:*
qualcomm mdm9640_firmware — cpe:2.3:o:qualcomm:mdm9640_firmware:-:*:*:*:*:*:*:*
qualcomm mdm9645_firmware — cpe:2.3:o:qualcomm:mdm9645_firmware:-:*:*:*:*:*:*:*
qualcomm mdm9650_firmware — cpe:2.3:o:qualcomm:mdm9650_firmware:-:*:*:*:*:*:*:*
qualcomm mdm9655_firmware — cpe:2.3:o:qualcomm:mdm9655_firmware:-:*:*:*:*:*:*:*
qualcomm msm8108_firmware — cpe:2.3:o:qualcomm:msm8108_firmware:-:*:*:*:*:*:*:*
qualcomm msm8208_firmware — cpe:2.3:o:qualcomm:msm8208_firmware:-:*:*:*:*:*:*:*
qualcomm msm8209_firmware — cpe:2.3:o:qualcomm:msm8209_firmware:-:*:*:*:*:*:*:*
qualcomm msm8608_firmware — cpe:2.3:o:qualcomm:msm8608_firmware:-:*:*:*:*:*:*:*
qualcomm msm8909w_firmware — cpe:2.3:o:qualcomm:msm8909w_firmware:-:*:*:*:*:*:*:*
qualcomm msm8917_firmware — cpe:2.3:o:qualcomm:msm8917_firmware:-:*:*:*:*:*:*:*
qualcomm msm8920_firmware — cpe:2.3:o:qualcomm:msm8920_firmware:-:*:*:*:*:*:*:*
qualcomm msm8937_firmware — cpe:2.3:o:qualcomm:msm8937_firmware:-:*:*:*:*:*:*:*
qualcomm msm8940_firmware — cpe:2.3:o:qualcomm:msm8940_firmware:-:*:*:*:*:*:*:*
qualcomm msm8953_firmware — cpe:2.3:o:qualcomm:msm8953_firmware:-:*:*:*:*:*:*:*
qualcomm msm8976_firmware — cpe:2.3:o:qualcomm:msm8976_firmware:-:*:*:*:*:*:*:*
qualcomm msm8976sg_firmware — cpe:2.3:o:qualcomm:msm8976sg_firmware:-:*:*:*:*:*:*:*
qualcomm msm8996au_firmware — cpe:2.3:o:qualcomm:msm8996au_firmware:-:*:*:*:*:*:*:*
qualcomm qca1990_firmware — cpe:2.3:o:qualcomm:qca1990_firmware:-:*:*:*:*:*:*:*
qualcomm qca4004_firmware — cpe:2.3:o:qualcomm:qca4004_firmware:-:*:*:*:*:*:*:*
qualcomm qca6174_firmware — cpe:2.3:o:qualcomm:qca6174_firmware:-:*:*:*:*:*:*:*
qualcomm qca6174a_firmware — cpe:2.3:o:qualcomm:qca6174a_firmware:-:*:*:*:*:*:*:*
qualcomm qca6310_firmware — cpe:2.3:o:qualcomm:qca6310_firmware:-:*:*:*:*:*:*:*
qualcomm qca6320_firmware — cpe:2.3:o:qualcomm:qca6320_firmware:-:*:*:*:*:*:*:*
qualcomm qca6335_firmware — cpe:2.3:o:qualcomm:qca6335_firmware:-:*:*:*:*:*:*:*
qualcomm qca6390_firmware — cpe:2.3:o:qualcomm:qca6390_firmware:-:*:*:*:*:*:*:*
qualcomm qca6391_firmware — cpe:2.3:o:qualcomm:qca6391_firmware:-:*:*:*:*:*:*:*
qualcomm qca6420_firmware — cpe:2.3:o:qualcomm:qca6420_firmware:-:*:*:*:*:*:*:*
qualcomm qca6421_firmware — cpe:2.3:o:qualcomm:qca6421_firmware:-:*:*:*:*:*:*:*
qualcomm qca6426_firmware — cpe:2.3:o:qualcomm:qca6426_firmware:-:*:*:*:*:*:*:*
qualcomm qca6430_firmware — cpe:2.3:o:qualcomm:qca6430_firmware:-:*:*:*:*:*:*:*
qualcomm qca6431_firmware — cpe:2.3:o:qualcomm:qca6431_firmware:-:*:*:*:*:*:*:*
qualcomm qca6436_firmware — cpe:2.3:o:qualcomm:qca6436_firmware:-:*:*:*:*:*:*:*
qualcomm qca6564a_firmware — cpe:2.3:o:qualcomm:qca6564a_firmware:-:*:*:*:*:*:*:*
qualcomm qca6564au_firmware — cpe:2.3:o:qualcomm:qca6564au_firmware:-:*:*:*:*:*:*:*
qualcomm qca6574_firmware — cpe:2.3:o:qualcomm:qca6574_firmware:-:*:*:*:*:*:*:*
qualcomm qca6574a_firmware — cpe:2.3:o:qualcomm:qca6574a_firmware:-:*:*:*:*:*:*:*
qualcomm qca6574au_firmware — cpe:2.3:o:qualcomm:qca6574au_firmware:-:*:*:*:*:*:*:*
qualcomm qca6584_firmware — cpe:2.3:o:qualcomm:qca6584_firmware:-:*:*:*:*:*:*:*
qualcomm qca6584au_firmware — cpe:2.3:o:qualcomm:qca6584au_firmware:-:*:*:*:*:*:*:*
qualcomm qca6595au_firmware — cpe:2.3:o:qualcomm:qca6595au_firmware:-:*:*:*:*:*:*:*
qualcomm qca6694_firmware — cpe:2.3:o:qualcomm:qca6694_firmware:-:*:*:*:*:*:*:*
qualcomm qca6694au_firmware — cpe:2.3:o:qualcomm:qca6694au_firmware:-:*:*:*:*:*:*:*
qualcomm qca6696_firmware — cpe:2.3:o:qualcomm:qca6696_firmware:-:*:*:*:*:*:*:*
qualcomm qca9367_firmware — cpe:2.3:o:qualcomm:qca9367_firmware:-:*:*:*:*:*:*:*
qualcomm qca9377_firmware — cpe:2.3:o:qualcomm:qca9377_firmware:-:*:*:*:*:*:*:*
qualcomm qca9379_firmware — cpe:2.3:o:qualcomm:qca9379_firmware:-:*:*:*:*:*:*:*
qualcomm qcm4290_firmware — cpe:2.3:o:qualcomm:qcm4290_firmware:-:*:*:*:*:*:*:*
qualcomm qcm6125_firmware — cpe:2.3:o:qualcomm:qcm6125_firmware:-:*:*:*:*:*:*:*
qualcomm qcs410_firmware — cpe:2.3:o:qualcomm:qcs410_firmware:-:*:*:*:*:*:*:*

References for CVE-2021-30261

cvelogic Threat Intelligence