How severe is CVE-2025-27039?

CVE-2025-27039 has a CVSS 3.x base score of 6.6, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability high.

Is CVE-2025-27039 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-27039?

CVE-2025-27039 primarily affects Qualcomm Fastconnect 6900 Firmware. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-27039?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-27039 have an EU (EUVD) identifier?

Yes. CVE-2025-27039 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-33248.

When was CVE-2025-27039 published?

CVE-2025-27039 was published on 2025-10-09 and last updated on 2026-06-17.

CVE-2025-27039

CVE-2025-27039 is a medium-severity vulnerability in Qualcomm Fastconnect 6900 Firmware with a CVSS 3.x base score of 6.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-390.

Key facts

Severity: Medium (CVSS 3.x base score 6.6)
EPSS exploit prediction: 0% (1st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-33248
Weakness: CWE-390
Affected product: Qualcomm Fastconnect 6900 Firmware
Published: 2025-10-09
Last modified: 2026-06-17

Description

Memory corruption may occur while processing IOCTL call for DMM/WARPNCC CONFIG request.

Frequently asked questions

What is CVE-2025-27039?: Memory corruption may occur while processing IOCTL call for DMM/WARPNCC CONFIG request.
How severe is CVE-2025-27039?: CVE-2025-27039 has a CVSS 3.x base score of 6.6, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability high.
Is CVE-2025-27039 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-27039?: CVE-2025-27039 primarily affects Qualcomm Fastconnect 6900 Firmware. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-27039?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-27039 have an EU (EUVD) identifier?: Yes. CVE-2025-27039 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-33248.
When was CVE-2025-27039 published?: CVE-2025-27039 was published on 2025-10-09 and last updated on 2026-06-17.

References

https://docs.qualcomm.com/product/publicresources/securitybulletin/october-2025-bulletin.html

Affected products (9)

cpe:2.3:o:qualcomm:fastconnect_6900_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:fastconnect_7800_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sxr2230p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sxr2250p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcd9380_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcd9385_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wsa8830_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wsa8832_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wsa8835_firmware:-:*:*:*:*:*:*:*

More vulnerabilities in Qualcomm Fastconnect 6900 Firmware

CVE-2025-27034 — Critical (CVSS 9.8): Memory corruption while selecting the PLMN from SOR failed list.
CVE-2025-21483 — Critical (CVSS 9.8): Memory corruption when the UE receives an RTP packet from the network, during the reassembly of NALUs.
CVE-2024-45569 — Critical (CVSS 9.8): Memory corruption while parsing the ML IE due to invalid frame content.
CVE-2024-21473 — Critical (CVSS 9.8): Memory corruption while redirecting log file to any file location with any file name.
CVE-2023-43553 — Critical (CVSS 9.8): Memory corruption while parsing beacon/probe response frame when AP sends more supported links in MLIE.
CVE-2023-43552 — Critical (CVSS 9.8): Memory corruption while processing MBSSID beacon containing several subelement IE.

All CVEs affecting Qualcomm Fastconnect 6900 Firmware →

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