CVE-2021-30260

Local memory corruption via extscan hostlist overflow

Published Sep 17, 2021 · Updated Aug 3, 2024

Buffer overflow in Qualcomm Snapdragon platforms allows local users to corrupt memory through a crafted extscan hostlist command. The configuration handler inadequately validates hostlist input parameters, allowing an integer calculation to overflow and produce an undersized buffer. Local access to an affected device is required; successful triggering can compromise confidentiality, integrity, and availability.

CVSS severity8.4
High
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in Qualcomm Snapdragon platforms allows local users to corrupt memory through a crafted extscan hostlist command. The configuration handler inadequately validates hostlist input parameters, allowing an integer calculation to overflow and produce an undersized buffer. Local access to an affected device is required; successful triggering can compromise confidentiality, integrity, and availability.

The record

CVE
CVE-2021-30260
Published
Sep 17, 2021
Updated
Aug 3, 2024
Vendor
Qualcomm
Product
Snapdragon
Classifications
CWE-20, CWE-190
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 17, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=APQ8009, APQ8017, APQ8053, APQ8064AU, APQ8076, APQ8092, APQ8094, APQ8096AU, AQT1000, AR8031, AR8035, AR9380, CSR6030, CSR8811, CSRA6620, CSRA6640, CSRB31024, IPQ4018, IPQ4028, IPQ4029, IPQ5010, IPQ5018, IPQ5028, IPQ6000, IPQ6005, IPQ6010, IPQ6018, IPQ6028, IPQ8064, IPQ8069, IPQ8070, IPQ8070A, IPQ8071, IPQ8071A, IPQ8072, IPQ8072A, IPQ8074, IPQ8074A, IPQ8076, IPQ8076A, IPQ8078, IPQ8078A, IPQ8173, IPQ8174, MDM8215, MDM9206, MDM9215, MDM9250, MDM9310, MDM9607, MDM9615, MDM9626, MDM9628, MDM9640, MDM9645, MDM9650, MSM8976, MSM8992, MSM8994, MSM8996AU, PMP8074, QCA0000, QCA1023, QCA1062, QCA1064, QCA1990, QCA2062, QCA2064, QCA2065, QCA2066, QCA4020, QCA4024, QCA4531, QCA6174, QCA6174A, QCA6175A, QCA6234, QCA6310, QCA6320, QCA6335, QCA6390, QCA6391, QCA6420, QCA6421, QCA6426, QCA6428, QCA6430, QCA6431, QCA6436, QCA6438, QCA6564, QCA6564A, QCA6564AU, QCA6574, QCA6574A, QCA6574AU, QCA6584, QCA6584AU, QCA6595, QCA6595AU, QCA6694, QCA6696, QCA8072, QCA8075, QCA8081, QCA8337, QCA9367, QCA9377, QCA9378A, Q ...[truncated*]

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Qualcomm · Snapdragonversion=APQ8009, APQ8017, APQ8053, APQ8064AU, APQ8076, APQ8092, APQ8094, APQ8096AU, AQT1000, AR8031, AR8035, AR9380, CSR6030, CSR8811, CSRA6620, CSRA6640, CSRB31024, IPQ4018, IPQ4028, IPQ4029, IPQ5010, IPQ5018, IPQ5028, IPQ6000, IPQ6005, IPQ6010, IPQ6018, IPQ6028, IPQ8064, IPQ8069, IPQ8070, IPQ8070A, IPQ8071, IPQ8071A, IPQ8072, IPQ8072A, IPQ8074, IPQ8074A, IPQ8076, IPQ8076A, IPQ8078, IPQ8078A, IPQ8173, IPQ8174, MDM8215, MDM9206, MDM9215, MDM9250, MDM9310, MDM9607, MDM9615, MDM9626, MDM9628, MDM9640, MDM9645, MDM9650, MSM8976, MSM8992, MSM8994, MSM8996AU, PMP8074, QCA0000, QCA1023, QCA1062, QCA1064, QCA1990, QCA2062, QCA2064, QCA2065, QCA2066, QCA4020, QCA4024, QCA4531, QCA6174, QCA6174A, QCA6175A, QCA6234, QCA6310, QCA6320, QCA6335, QCA6390, QCA6391, QCA6420, QCA6421, QCA6426, QCA6428, QCA6430, QCA6431, QCA6436, QCA6438, QCA6564, QCA6564A, QCA6564AU, QCA6574, QCA6574A, QCA6574AU, QCA6584, QCA6584AU, QCA6595, QCA6595AU, QCA6694, QCA6696, QCA8072, QCA8075, QCA8081, QCA8337, QCA9367, QCA9377, QCA9378A, Q ...[truncated*]

Published CVSS scores

8.4Qualcomm, Inc.CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
4.6NIST NVDAV:L/AC:L/Au:N/C:P/I:P/A:P
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
CWE-190Integer Overflow or Wraparound

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

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