How severe is CVE-2026-21382?

CVE-2026-21382 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-21382 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-2026-21382?

CVE-2026-21382 primarily affects Qualcomm Cologne Firmware. In total, 19 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-21382?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-21382 have an EU (EUVD) identifier?

Yes. CVE-2026-21382 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19339.

When was CVE-2026-21382 published?

CVE-2026-21382 was published on 2026-04-06 and last updated on 2026-06-17.

CVE-2026-21382

CVE-2026-21382 is a high-severity vulnerability in Qualcomm Cologne Firmware with a CVSS 3.x base score of 7.8. 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-120.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 0% (1st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-19339
Weakness: CWE-120
Affected product: Qualcomm Cologne Firmware
Published: 2026-04-06
Last modified: 2026-06-17

Description

Memory Corruption when handling power management requests with improperly sized input/output buffers.

Frequently asked questions

What is CVE-2026-21382?: Memory Corruption when handling power management requests with improperly sized input/output buffers.
How severe is CVE-2026-21382?: CVE-2026-21382 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-21382 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-2026-21382?: CVE-2026-21382 primarily affects Qualcomm Cologne Firmware. In total, 19 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-21382?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-21382 have an EU (EUVD) identifier?: Yes. CVE-2026-21382 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19339.
When was CVE-2026-21382 published?: CVE-2026-21382 was published on 2026-04-06 and last updated on 2026-06-17.

References

https://docs.qualcomm.com/product/publicresources/securitybulletin/april-2026-bulletin.html

Affected products (19)

cpe:2.3:o:qualcomm:cologne_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:fastconnect_6900_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:fastconnect_7800_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca0000_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sc8380xp_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcd9378c_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcd9380_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcd9385_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wsa8840_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wsa8845_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wsa8845h_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:x2000077_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:x2000086_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:x2000090_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:x2000092_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:x2000094_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:xg101002_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:xg101032_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:xg101039_firmware:-:*:*:*:*:*:*:*

More vulnerabilities in Qualcomm Cologne Firmware

CVE-2026-25271 — High (CVSS 7.8): Memory Corruption when processing asynchronous input parameters due to improper handling of modified values between…
CVE-2026-21379 — High (CVSS 7.8): Memory Corruption when allocating memory with sizes that exceed the maximum allowed value.
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CVE-2026-25259 — High (CVSS 7.8): Memory corruption while processing multiple IOCTL command for escape operations.
CVE-2026-25258 — High (CVSS 7.8): Memory corruption while processing IOCTL calls for escape operations.
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