Cyber Resilience

CVE-2024-45556

Qualcomm Fastconnect 6900 Firmware

Published
07 April 2025
Modified
19 August 2025
Patch / advisory
CVSS Score v3.1 6.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
EPSS Score 0.00089 0.5th percentile
Risk Priority 44 floored blend · peak EPSS

Summary

CVE-2024-45556 is a medium-severity Improper Access Control for Register Interface (CWE-1262) vulnerability in Qualcomm Fastconnect 6900 Firmware. Its CVSS base score is 6.5 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Firmware Corruption (T1495); ranked at the 0.5th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to AC-3 (Access Enforcement) and AC-6 (Least Privilege) — see the control section below for these in your framework.

EU & UK References

Vulnerability Data

Cryptographic issue may arise because the access control configuration permits Linux to read key registers in TCSR.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1495 Firmware Corruption Impact
Adversaries may overwrite or corrupt the flash memory contents of system BIOS or other firmware in devices attached to a system in order to render them inoperable or unable to boot, thus denying the availability to use the devices and/or…
T1542 Pre-OS Boot Stealth
Adversaries may abuse Pre-OS Boot mechanisms as a way to establish persistence on a system.
T1601 Modify System Image Defense Impairment
Adversaries may make changes to the operating system of embedded network devices to weaken defenses and provide new capabilities for themselves.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2025-47385Same product: Qualcomm Fastconnect 6900
CVE-2025-47328Same product: Qualcomm Fastconnect 7800
CVE-2025-27029Same product: Qualcomm Fastconnect 7800
CVE-2024-33063Same product: Qualcomm Fastconnect 6900
CVE-2024-38397Same product: Qualcomm Fastconnect 6900
CVE-2024-21466Same product: Qualcomm Fastconnect 7800
CVE-2024-33068Same product: Qualcomm Fastconnect 6900
CVE-2025-27065Same product: Qualcomm Fastconnect 6900
CVE-2024-33066Same product: Qualcomm Immersive Home 3210 Platform
CVE-2025-47326Same product: Qualcomm Fastconnect 6900

Affected Assets

qualcomm
fastconnect 6900 firmware
all versions
qualcomm
fastconnect 7800 firmware
all versions
qualcomm
immersive home 3210 platform firmware
all versions
qualcomm
immersive home 326 platform firmware
all versions
qualcomm
ipq5300 firmware
all versions
qualcomm
ipq5302 firmware
all versions
qualcomm
ipq5312 firmware
all versions
qualcomm
ipq5332 firmware
all versions
qualcomm
ipq9008 firmware
all versions
qualcomm
ipq9048 firmware
all versions
+50 more product configuration(s) — see NVD for full list

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

Enforcing approved authorizations for logical access directly stops unauthorized software from reaching memory-mapped registers.

Least-privilege assignment restricts which processes may access hardware registers, reducing the chance of improper interface exposure.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.AA-05 mostly match
prevents

Defining, enforcing, and reviewing access permissions and least privilege directly addresses unauthorized register access.

PR.IR-01 partial match
prevents

Protecting environments from unauthorized logical access can prevent improper register-interface usage.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

finds

Security testing can discover improper register access but does not prevent it at runtime.

mitigates

Privileged utility programs may touch registers, so the control partially mitigates misuse.

prevents

Privileged access rights directly restrict who can read/write hardware registers.

prevents

Secure architecture principles require proper hardware register access controls by design.

prevents

Secure coding practices prevent unauthorized register access in firmware and drivers.

prevents

Information access restriction explicitly limits software access to memory-mapped register interfaces.

References