CVE-2023-28556 Improper Authorization in HLOS
An improper authorization flaw in Qualcomm Snapdragon HLOS key management allows attackers to bypass security controls.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-28556?
CVE-2023-28556 is a high-severity missing authorization vulnerability in Qualcomm 315 5g Iot Modem Firmware, published on 7 Nov 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Cryptographic issue in HLOS during key management.
Weakness: CWE-285
Which versions are affected by CVE-2023-28556?
It affects 226 products.
Products include Qualcomm 315 5g Iot Modem Firmware, Qualcomm 9205 Lte Modem Firmware, Qualcomm Aqt1000 Firmware, Qualcomm Ar8031 Firmware, Qualcomm Ar8035 Firmware, Qualcomm C-V2x 9150 Firmware and 220 more.
How do I fix CVE-2023-28556?
No fix has been published for CVE-2023-28556 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2023-28556 being exploited?
There is no known exploitation of CVE-2023-28556 in the wild and no public exploit code.
Other vulnerabilities in Qualcomm 315 5g Iot Modem Firmware
- CVE-2023-33107 Qualcomm Multiple Chipsets Integer Overflow
- CVE-2023-33063 Qualcomm Multiple Chipsets Use-After-Free
- CVE-2025-27034 Improper Validation of Array Index in Multi-Mode Call Processor
- CVE-2023-22388 Use of Out-of-range Pointer Offset in Multi-mode Call Processor
- CVE-2023-28578 Improper Input Validation in Services
Sources
Also known as GHSA-q34h-jjh9-ggfh.