CVE-2022-40520
High
Published: 09 January 2023
Published
09 January 2023
Modified
09 April 2025
KEV Added
—
Patch
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CVSS Score v3.1
8.4
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score
0.0332
87.5th percentile
Risk Priority
19
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2022-40520 is a high-severity Out-of-bounds Write (CWE-787) vulnerability in Qualcomm Sdx55 Firmware. Its CVSS base score is 8.4 (High).
Operationally, ranked in the top 12.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-43795
Vulnerability details
Memory corruption due to stack-based buffer overflow in Core
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
qualcomm
apq8064au firmware
all versions
qualcomm
apq8096au firmware
all versions
qualcomm
aqt1000 firmware
all versions
qualcomm
ar8035 firmware
all versions
qualcomm
csrb31024 firmware
all versions
qualcomm
fsm10056 firmware
all versions
qualcomm
mdm9150 firmware
all versions
qualcomm
mdm9205 firmware
all versions
qualcomm
mdm9640 firmware
all versions
qualcomm
mdm9650 firmware
all versions
+137 more product configuration(s) — see NVD for full list
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
addresses: CWE-787
Out-of-bounds writes that corrupt control flow or inject shellcode are rendered non-executable by the same memory protections.