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CVE-2023-21636Improper Validation of Array Index in Linux

Description

Memory Corruption due to improper validation of array index in Linux while updating adn record.

Timeline

  1. ID reserved

    By qualcomm

  2. · 9 months later

    Published

  3. · 11 months later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2023-21636, by who scored it
Scored byCVSSScoreVector
qualcommCNA (assigner)3.1Medium6.7CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
NVDNVD · Modified3.1High7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS (exploitation in 30 days)
0.11% · top 98% of all CVEs (12 Nov 2026)
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.7.

Affected products

  • Qualcomm, Inc. · Snapdragon

    • affected AQT1000
    • affected QCA6390
    • affected QCA6391
    • affected QCA6420
    • affected QCA6426
    • affected QCA6430
    • affected QCA6436
    • affected QCA6574A
    • affected QCA6574AU
    • affected QCA6595AU
    • affected QCA6696
    • affected QCC5100
    • affected SA515M
    • affected SA6145P
    • affected SA6150P
    • affected SA6155P
    • affected SA8145P
    • affected SA8150P
    • affected SA8155P
    • affected SA8195P
    • affected SD480
    • affected SD695
    • affected SD855
    • affected SD865 5G
    • affected SD870
    • affected SDA429W
    • affected SDX55
    • affected SDX55M
    • affected SDXR2 5G
    • affected SM4375
    • affected SW5100
    • affected SW5100P
    • affected WCD9341
    • affected WCD9360
    • affected WCD9370
    • affected WCD9375
    • affected WCD9380
    • affected WCD9385
    • affected WCN3610
    • affected WCN3660B
    • and 11 more

References

References1

Sources

The same CVE in the primary databases and aggregators, to check against.

Badge for a README or a ticket

CVE-2023-21636 badge
[![CVE-2023-21636](https://cveledger.app/badge/CVE-2023-21636.svg)](https://cveledger.app/cve/CVE-2023-21636)

Record last updated .