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CVE-2023-28556

Improper Authorization in HLOS

7.1 High

Cryptographic issue in HLOS during key management.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
None

Exploit likelihood

0.13%Up 0.1 points since Nov 7, 2023
90%50%10%1%

What each source reports

CVE List Score used 7.1

Improper Authorization in HLOS

Cryptographic issue in HLOS during key management.

Record
CVE-2023-28556
CVSS 3.1
7.1 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Weakness
CWE-285
Updated
2026-11-02
EUVDEUVD-2023-32226 7.1

Cryptographic issue in HLOS during key management.

Record
EUVD-2023-32226
CVSS 3.1
7.1 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Updated
2026-11-03
GitHub AdvisoriesGHSA-q34h-jjh9-ggfh 7.8

Cryptographic issue in HLOS during key management.

Cryptographic issue in HLOS during key management.

Record
GHSA-q34h-jjh9-ggfh
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-285
Updated
2026-11-02
NVD 7.1

Cryptographic issue in HLOS during key management.

Record
CVE-2023-28556
CVSS 3.1
7.1 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-285
Updated
2026-11-02

Affected products

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History

History
RecordedChangedSources
aliases, publishedEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-28556 is a high vulnerability (CVSS 7.1) in Qualcomm 315 5g Iot Modem Firmware, published November 7, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.13%, the 2nd percentile. No source names a fixed version.

References

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