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CVE-2026-64536

HIGH 8.1 ALL-YEARS

Published 2026-07-27 · Last modified 2026-10-19 · Linux · NVD: Received

In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix OOB reads in is_ap_in_tkip() IE loop The loop in is_ap_in_tkip() iterates over IEs without verifying that enough bytes remain before dereferencing the IE header or its payload: - pIE->element_id and pIE->length are read without checking that i + sizeof(*pIE) <= ie_length, so a truncated IE at the end of the buffer causes an OOB read. - For WLAN_EID_VENDOR_SPECIFIC the code compares pIE->data + 12, which requires pIE->length >= 16. For WLAN_EID_RSN it compares pIE->data + 8, requiring pIE->length >= 12. Neither requirement is checked. Add the missing IE header and payload bounds checks and guard each data access with an explicit pIE->length minimum, matching the pattern established in update_beacon_info().

ELEVATED IMPACT

Severe if exploited (CVSS 8.1), but no confirmed exploitation. Patch on a normal cadence.

Exploitation likelihood

0.3%chance of exploitation in 30 days · 17th percentile

○ In CISA KEV○ Catalogued PoC◆ SSVC: exploitation none, automatable no

Impact if exploited

8.1CVSS 3.1 · HIGH · CNA

  • ConfidentialityHigh
  • IntegrityNone
  • AvailabilityHigh

What an attacker needs

  • ⚠Access: Must sit on the same / adjacent network
  • ✓Privileges: No account or privileges required
  • ✓User interaction: No user interaction needed
  • ✓Complexity: No special conditions — reliably repeatable

✓ lowers the bar for an attacker · ⚠ raises it

Proof of concept

No public PoC is currently catalogued.

Search for new PoCs

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Tracked sources are checked weekly for the full archive, including PoCs published after the original disclosure. A later release appears after a tracked source lists it and a refresh succeeds.

Affected

Vendors Linux

Products Linux

Weakness (CWE)

  • CWE-125: Out-of-bounds Read

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

References and research data (JSON)

Vendor product assessments

Showing 32 of 275 vendor product statements; 243 omitted. Read the full vendor advisory.

  • kernel as a component of Red Hat Enterprise Linux 10 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel

    Red Hat · CVE-2026-64536 · Updated 2026-10-19T23:44:52+00:00
  • kernel-64k-debug-modules-extra as a component of Red Hat Enterprise Linux 10 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel-64k-debug-modules-extra

    Red Hat · CVE-2026-64536 · Updated 2026-10-19T23:44:52+00:00
  • kernel-debug-core as a component of Red Hat Enterprise Linux 10 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel-debug-core

    Red Hat · CVE-2026-64536 · Updated 2026-10-19T23:44:52+00:00
  • kernel-doc as a component of Red Hat Enterprise Linux 10 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel-doc

    Red Hat · CVE-2026-64536 · Updated 2026-10-19T23:44:52+00:00
  • kernel-rt-64k-core as a component of Red Hat Enterprise Linux 10 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel-rt-64k-core

    Red Hat · CVE-2026-64536 · Updated 2026-10-19T23:44:52+00:00
  • kernel-rt-64k-modules-core as a component of Red Hat Enterprise Linux 10 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel-rt-64k-modules-core

    Red Hat · CVE-2026-64536 · Updated 2026-10-19T23:44:52+00:00
  • kernel-rt-debug-modules-extra as a component of Red Hat Enterprise Linux 10 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel-rt-debug-modules-extra

    Red Hat · CVE-2026-64536 · Updated 2026-10-19T23:44:52+00:00
  • kernel-uki-virt as a component of Red Hat Enterprise Linux 10 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel-uki-virt

    Red Hat · CVE-2026-64536 · Updated 2026-10-19T23:44:52+00:00
  • kernel.src as a component of Red Hat Enterprise Linux 10 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel?arch=src

    Red Hat · CVE-2026-64536 · Updated 2026-10-19T23:44:52+00:00
  • kernel-debug as a component of Red Hat Enterprise Linux 6 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel-debug

    Red Hat · CVE-2026-64536 · Updated 2026-10-19T23:44:52+00:00
  • kernel.src as a component of Red Hat Enterprise Linux 6 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel?arch=src

    Red Hat · CVE-2026-64536 · Updated 2026-10-19T23:44:52+00:00
  • kernel-devel as a component of Red Hat Enterprise Linux 7 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel-devel

    Red Hat · CVE-2026-64536 · Updated 2026-10-19T23:44:52+00:00
  • kernel-rt-devel as a component of Red Hat Enterprise Linux 7 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel-rt-devel

    Red Hat · CVE-2026-64536 · Updated 2026-10-19T23:44:52+00:00
  • kernel-tools-libs-devel as a component of Red Hat Enterprise Linux 7 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel-tools-libs-devel

    Red Hat · CVE-2026-64536 · Updated 2026-10-19T23:44:52+00:00
  • kernel-cross-headers as a component of Red Hat Enterprise Linux 8 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel-cross-headers

    Red Hat · CVE-2026-64536 · Updated 2026-10-19T23:44:52+00:00
  • kernel-headers as a component of Red Hat Enterprise Linux 8 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel-headers

    Red Hat · CVE-2026-64536 · Updated 2026-10-19T23:44:52+00:00
  • kernel-rt-debug-core as a component of Red Hat Enterprise Linux 8 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel-rt-debug-core

    Red Hat · CVE-2026-64536 · Updated 2026-10-19T23:44:52+00:00
  • kernel-rt-modules-extra as a component of Red Hat Enterprise Linux 8 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel-rt-modules-extra

    Red Hat · CVE-2026-64536 · Updated 2026-10-19T23:44:52+00:00
  • kernel-zfcpdump-core as a component of Red Hat Enterprise Linux 8 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel-zfcpdump-core

    Red Hat · CVE-2026-64536 · Updated 2026-10-19T23:44:52+00:00
  • kernel as a component of Red Hat Enterprise Linux 9 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel

    Red Hat · CVE-2026-64536 · Updated 2026-10-19T23:44:52+00:00
  • kernel-64k-debug-modules-extra as a component of Red Hat Enterprise Linux 9 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel-64k-debug-modules-extra

    Red Hat · CVE-2026-64536 · Updated 2026-10-19T23:44:52+00:00
  • kernel-64k-modules-partner as a component of Red Hat Enterprise Linux 9 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel-64k-modules-partner

    Red Hat · CVE-2026-64536 · Updated 2026-10-19T23:44:52+00:00
  • kernel-debug-modules as a component of Red Hat Enterprise Linux 9 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel-debug-modules

    Red Hat · CVE-2026-64536 · Updated 2026-10-19T23:44:52+00:00
  • kernel-doc as a component of Red Hat Enterprise Linux 9 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel-doc

    Red Hat · CVE-2026-64536 · Updated 2026-10-19T23:44:52+00:00
  • kernel-rt-64k as a component of Red Hat Enterprise Linux 9 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel-rt-64k

    Red Hat · CVE-2026-64536 · Updated 2026-10-19T23:44:52+00:00
  • kernel-rt-64k-debug-modules-extra as a component of Red Hat Enterprise Linux 9 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel-rt-64k-debug-modules-extra

    Red Hat · CVE-2026-64536 · Updated 2026-10-19T23:44:52+00:00
  • kernel-rt-64k-modules-internal as a component of Red Hat Enterprise Linux 9 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel-rt-64k-modules-internal

    Red Hat · CVE-2026-64536 · Updated 2026-10-19T23:44:52+00:00
  • kernel-rt-debug-modules-core as a component of Red Hat Enterprise Linux 9 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel-rt-debug-modules-core

    Red Hat · CVE-2026-64536 · Updated 2026-10-19T23:44:52+00:00
  • kernel-rt-modules-core as a component of Red Hat Enterprise Linux 9 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel-rt-modules-core

    Red Hat · CVE-2026-64536 · Updated 2026-10-19T23:44:52+00:00
  • kernel-tools-libs-devel as a component of Red Hat Enterprise Linux 9 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel-tools-libs-devel

    Red Hat · CVE-2026-64536 · Updated 2026-10-19T23:44:52+00:00
  • kernel-zfcpdump-modules-extra as a component of Red Hat Enterprise Linux 9 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel-zfcpdump-modules-extra

    Red Hat · CVE-2026-64536 · Updated 2026-10-19T23:44:52+00:00
  • rv as a component of Red Hat Enterprise Linux 9 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/rv

    Red Hat · CVE-2026-64536 · Updated 2026-10-19T23:44:52+00:00

All CVSS metrics

  • HIGH 8.1 v3.1 · CNA Primary
    CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
  • HIGH 8.1 v3.1 · NVD Secondary
    CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

References

Advisories

Technical & other

Sources: NVD · CVE.org · All sources and attribution · EPSS