CVE-2026-21372

CVE-2026-21372 is a high-severity vulnerability in Qualcomm X2000094 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-122.

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-2026-19323
• Weakness: CWE-122
• Affected product: Qualcomm X2000094 Firmware
• Published: 2026-04-06
• Last modified: 2026-06-17

Description

Memory Corruption when sending IOCTL requests with invalid buffer sizes during memcpy operations.

Frequently asked questions

What is CVE-2026-21372?

Memory Corruption when sending IOCTL requests with invalid buffer sizes during memcpy operations.

How severe is CVE-2026-21372?

CVE-2026-21372 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-2026-21372 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-2026-21372?

CVE-2026-21372 primarily affects Qualcomm X2000094 Firmware. In total, 28 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-21372?

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-2026-21372 have an EU (EUVD) identifier?

Yes. CVE-2026-21372 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19323.

When was CVE-2026-21372 published?

CVE-2026-21372 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 (28)

• 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:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:x2000092_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:x2000090_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:x2000086_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:x2000077_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:wsa8845h_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:wsa8845_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:wsa8840_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:wcn3988_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:wcn3950_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:wcd9385_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:wcd9380_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:wcd9378c_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:wcd9375_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:wcd9370_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:snapdragon_7c\+_gen_3_compute_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:snapdragon_662_mobile_platform_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:snapdragon_460_mobile_platform_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:video_collaboration_vc3_platform_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qcm6490_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qcm5430_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:fastconnect_7800_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:fastconnect_6900_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:fastconnect_6700_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:cologne_firmware:-:*:*:*:*:*:*:*

More vulnerabilities in Qualcomm X2000094 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.
• CVE-2026-25260 — High (CVSS 7.8): Memory Corruption when accessing shared buffers without validation of concurrent user-mode input modifications.
• 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.
• CVE-2025-59606 — High (CVSS 7.8): Memory Corruption when writing to invalid memory locations occurs due to heap memory exhaustion during secure data…

All CVEs affecting Qualcomm X2000094 Firmware →

Other CWE-122 (Heap-based Buffer Overflow) vulnerabilities

• CVE-2026-46752 — Critical (CVSS 10.0): Redis Lua HEAP overflow in cjson library vulnerability in Apache Kvrocks. This issue affects Apache Kvrocks: from…
• CVE-2026-24822 — Critical (CVSS 10.0): Out-of-bounds Write, Heap-based Buffer Overflow vulnerability in ttttupup wxhelper (src modules). This vulnerability is…
• CVE-2025-23123 — Critical (CVSS 10.0): A malicious actor with access to the management network could execute a remote code execution (RCE) by exploiting a…
• CVE-2022-34819 — Critical (CVSS 10.0): A vulnerability has been identified in SIMATIC CP 1242-7 V2 (All versions < V3.3.46), SIMATIC CP 1243-1 (All versions <…
• CVE-2026-44050 — Critical (CVSS 9.9): A heap-based buffer overflow in the CNID daemon comm_rcv() function in Netatalk 2.0.0 through 4.4.2 allows a remote…
• CVE-2026-49841 — Critical (CVSS 9.8): FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to…

Browse all CWE-122 (Heap-based Buffer Overflow) vulnerabilities →