Cyber Resilience

CVE-2025-27071

High

Published: 06 August 2025

Published
06 August 2025
Modified
19 August 2025
KEV Added
—
Patch
—
CVSS Score v3.1 7.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
EPSS Score 0.0032 55.5th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-27071 is a high-severity Classic Buffer Overflow (CWE-120) vulnerability in Qualcomm Fastconnect 6800 Firmware. Its CVSS base score is 7.3 (High).

Operationally, ranked in the top 44.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Memory corruption while processing specific files in Powerline Communication Firmware.

CWE(s)
CWE-120

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

qualcomm
fastconnect 6800 firmware
all versions
qualcomm
fastconnect 6900 firmware
all versions
qualcomm
fastconnect 7800 firmware
all versions
qualcomm
qca6391 firmware
all versions
qualcomm
qca6426 firmware
all versions
qualcomm
qca6436 firmware
all versions
qualcomm
qsm8250 firmware
all versions
qualcomm
sd865 5g firmware
all versions
qualcomm
sdm429w firmware
all versions
qualcomm
sdx55 firmware
all versions
+24 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.

SC-27 Platform-independent Applications
addresses: CWE-120

Platform-independent managed code eliminates the need for unchecked native buffer copies that are the root cause of classic buffer overflows.

References