RHSA-2026:65709
Vulnerability from csaf_redhat - Published: 2026-09-09 01:07 - Updated: 2026-09-17 15:01Summary
Red Hat Security Advisory: kernel security update
Severity
Important
Notes
Topic: An update for kernel is now available for Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions and Red Hat Enterprise Linux 8.8 Telecommunications Update Service.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* kernel: Bluetooth: hci_event: fix potential UAF in SSP passkey handlers (CVE-2026-46056)
* kernel: USB: serial: io_ti: fix heap overflow in get_manuf_info() (CVE-2026-53196)
* kernel: i2c: stub: Reject I2C block transfers with invalid length (CVE-2026-64191)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A flaw was found in the Linux kernel's Bluetooth subsystem. This vulnerability, a Use-After-Free (UAF), exists within the Secure Simple Pairing (SSP) passkey handlers. It occurs when `hci_conn` lookup and field access are performed without proper locking, allowing a connection to be freed concurrently. This could potentially enable a local attacker to cause a denial of service or execute arbitrary code.
7.1 (High)
Affected products
Fixed
72 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:bpftool-0:4.18.0-477.166.1.el8_8.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:bpftool-0:4.18.0-477.166.1.el8_8.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:bpftool-debuginfo-0:4.18.0-477.166.1.el8_8.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:bpftool-debuginfo-0:4.18.0-477.166.1.el8_8.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kernel-0:4.18.0-477.166.1.el8_8.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kernel-0:4.18.0-477.166.1.el8_8.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kernel-0:4.18.0-477.166.1.el8_8.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kernel-abi-stablelists-0:4.18.0-477.166.1.el8_8.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kernel-core-0:4.18.0-477.166.1.el8_8.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kernel-core-0:4.18.0-477.166.1.el8_8.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kernel-debug-0:4.18.0-477.166.1.el8_8.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kernel-debug-0:4.18.0-477.166.1.el8_8.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kernel-debug-core-0:4.18.0-477.166.1.el8_8.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kernel-debug-core-0:4.18.0-477.166.1.el8_8.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kernel-debug-debuginfo-0:4.18.0-477.166.1.el8_8.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kernel-debug-debuginfo-0:4.18.0-477.166.1.el8_8.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kernel-debug-devel-0:4.18.0-477.166.1.el8_8.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kernel-debug-devel-0:4.18.0-477.166.1.el8_8.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kernel-debug-modules-0:4.18.0-477.166.1.el8_8.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kernel-debug-modules-0:4.18.0-477.166.1.el8_8.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kernel-debug-modules-extra-0:4.18.0-477.166.1.el8_8.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kernel-debug-modules-extra-0:4.18.0-477.166.1.el8_8.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kernel-debuginfo-0:4.18.0-477.166.1.el8_8.ppc64le | — |
Vendor Fix
fix
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|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kernel-debuginfo-0:4.18.0-477.166.1.el8_8.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-8.8.0.Z.E4S:kernel-debuginfo-common-ppc64le-0:4.18.0-477.166.1.el8_8.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kernel-debuginfo-common-x86_64-0:4.18.0-477.166.1.el8_8.x86_64 | — |
Vendor Fix
fix
|
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| Unresolved product id: BaseOS-8.8.0.Z.E4S:kernel-devel-0:4.18.0-477.166.1.el8_8.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kernel-devel-0:4.18.0-477.166.1.el8_8.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kernel-doc-0:4.18.0-477.166.1.el8_8.noarch | — |
Vendor Fix
fix
|
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| Unresolved product id: BaseOS-8.8.0.Z.E4S:kernel-modules-0:4.18.0-477.166.1.el8_8.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-8.8.0.Z.E4S:kernel-modules-0:4.18.0-477.166.1.el8_8.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-8.8.0.Z.E4S:kernel-modules-extra-0:4.18.0-477.166.1.el8_8.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-8.8.0.Z.E4S:kernel-modules-extra-0:4.18.0-477.166.1.el8_8.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-8.8.0.Z.E4S:kernel-tools-0:4.18.0-477.166.1.el8_8.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-8.8.0.Z.E4S:kernel-tools-0:4.18.0-477.166.1.el8_8.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-8.8.0.Z.E4S:kernel-tools-debuginfo-0:4.18.0-477.166.1.el8_8.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kernel-tools-debuginfo-0:4.18.0-477.166.1.el8_8.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kernel-tools-libs-0:4.18.0-477.166.1.el8_8.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kernel-tools-libs-0:4.18.0-477.166.1.el8_8.x86_64 | — |
Vendor Fix
fix
|
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| Unresolved product id: BaseOS-8.8.0.Z.E4S:perf-0:4.18.0-477.166.1.el8_8.ppc64le | — |
Vendor Fix
fix
|
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| Unresolved product id: BaseOS-8.8.0.Z.E4S:perf-0:4.18.0-477.166.1.el8_8.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:perf-debuginfo-0:4.18.0-477.166.1.el8_8.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:perf-debuginfo-0:4.18.0-477.166.1.el8_8.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:python3-perf-0:4.18.0-477.166.1.el8_8.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:python3-perf-0:4.18.0-477.166.1.el8_8.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-8.8.0.Z.E4S:python3-perf-debuginfo-0:4.18.0-477.166.1.el8_8.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-8.8.0.Z.E4S:python3-perf-debuginfo-0:4.18.0-477.166.1.el8_8.x86_64 | — |
Vendor Fix
fix
|
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| Unresolved product id: BaseOS-8.8.0.Z.TUS:bpftool-0:4.18.0-477.166.1.el8_8.x86_64 | — |
Vendor Fix
fix
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|
| Unresolved product id: BaseOS-8.8.0.Z.TUS:bpftool-debuginfo-0:4.18.0-477.166.1.el8_8.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.TUS:kernel-0:4.18.0-477.166.1.el8_8.src | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-8.8.0.Z.TUS:kernel-0:4.18.0-477.166.1.el8_8.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.TUS:kernel-abi-stablelists-0:4.18.0-477.166.1.el8_8.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.TUS:kernel-core-0:4.18.0-477.166.1.el8_8.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.TUS:kernel-debug-0:4.18.0-477.166.1.el8_8.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.TUS:kernel-debug-core-0:4.18.0-477.166.1.el8_8.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.TUS:kernel-debug-debuginfo-0:4.18.0-477.166.1.el8_8.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.TUS:kernel-debug-devel-0:4.18.0-477.166.1.el8_8.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.TUS:kernel-debug-modules-0:4.18.0-477.166.1.el8_8.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.TUS:kernel-debug-modules-extra-0:4.18.0-477.166.1.el8_8.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.TUS:kernel-debuginfo-0:4.18.0-477.166.1.el8_8.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.TUS:kernel-debuginfo-common-x86_64-0:4.18.0-477.166.1.el8_8.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.TUS:kernel-devel-0:4.18.0-477.166.1.el8_8.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.TUS:kernel-doc-0:4.18.0-477.166.1.el8_8.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.TUS:kernel-modules-0:4.18.0-477.166.1.el8_8.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.TUS:kernel-modules-extra-0:4.18.0-477.166.1.el8_8.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.TUS:kernel-tools-0:4.18.0-477.166.1.el8_8.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.TUS:kernel-tools-debuginfo-0:4.18.0-477.166.1.el8_8.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.TUS:kernel-tools-libs-0:4.18.0-477.166.1.el8_8.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.TUS:perf-0:4.18.0-477.166.1.el8_8.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.TUS:perf-debuginfo-0:4.18.0-477.166.1.el8_8.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.TUS:python3-perf-0:4.18.0-477.166.1.el8_8.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.TUS:python3-perf-debuginfo-0:4.18.0-477.166.1.el8_8.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
A flaw was found in the Linux kernel's `io_ti` USB serial driver. A malicious USB device, when plugged into a host running this driver, can exploit a heap overflow vulnerability in the `get_manuf_info()` function. This occurs because the driver does not properly validate the size of data read from the device's I2C EEPROM against the allocated memory buffer. This improper validation can lead to out-of-bounds memory writes, potentially allowing an attacker to execute arbitrary code or cause a system crash (Denial of Service).
6.8 (Medium)
Affected products
Fixed
72 products, the same list as for
CVE-2026-46056
Threats
Impact
Moderate
A flaw was found in the Linux kernel's `i2c-stub` driver. A local user with access to the `/dev/i2c-*` device can exploit this vulnerability by issuing an I2C System Management Bus (SMBus) input/output control (ioctl) command with a specially crafted block transfer length. This invalid length can cause the driver to read or write beyond the allocated buffer, leading to a stack-out-of-bounds error and a system crash, resulting in a Denial of Service (DoS).
7.0 (High)
Affected products
Fixed
72 products, the same list as for
CVE-2026-46056
Threats
Impact
Important
References
21 references
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"discovery_date": "2026-05-27T00:00:00+00:00",
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"text": "2482181"
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{
"category": "description",
"text": "A flaw was found in the Linux kernel\u0027s Bluetooth subsystem. This vulnerability, a Use-After-Free (UAF), exists within the Secure Simple Pairing (SSP) passkey handlers. It occurs when `hci_conn` lookup and field access are performed without proper locking, allowing a connection to be freed concurrently. This could potentially enable a local attacker to cause a denial of service or execute arbitrary code.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: Bluetooth: hci_event: fix potential UAF in SSP passkey handlers",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
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},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-46056"
},
{
"category": "external",
"summary": "RHBZ#2482181",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482181"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-46056",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46056"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-46056",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46056"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2026052754-CVE-2026-46056-0ff1@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2026052754-CVE-2026-46056-0ff1@gregkh/T"
}
],
"release_date": "2026-05-27T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-09-09T01:07:10+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.\n\nRed Hat recommends treating all kernel errata as security-relevant. Given the kernel\u0027s fundamental role, any bug has a higher chance of impacting system security, even if that impact only becomes clear after a fix is published. Therefore, Red Hat prioritizes delivering fixes that improve our customers\u0027 overall security posture.\n\nBecause of this proactive approach, a patch may be associated with a CVE assignment at a future date. Retroactive CVE assignments are always documented in the corresponding errata and on Red Hat\u0027s CVE pages. We strongly advise against delaying updates, as doing so may leave your system exposed when protections are already available.",
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"restart_required": {
"category": "machine"
},
"url": "https://access.redhat.com/errata/RHSA-2026:65709"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
"version": "3.1"
},
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"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "kernel: Bluetooth: hci_event: fix potential UAF in SSP passkey handlers"
},
{
"cve": "CVE-2026-53196",
"cwe": {
"id": "CWE-787",
"name": "Out-of-bounds Write"
},
"discovery_date": "2026-06-25T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2492750"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the Linux kernel\u0027s `io_ti` USB serial driver. A malicious USB device, when plugged into a host running this driver, can exploit a heap overflow vulnerability in the `get_manuf_info()` function. This occurs because the driver does not properly validate the size of data read from the device\u0027s I2C EEPROM against the allocated memory buffer. This improper validation can lead to out-of-bounds memory writes, potentially allowing an attacker to execute arbitrary code or cause a system crash (Denial of Service).",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: USB: serial: io_ti: fix heap overflow in get_manuf_info()",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "get_manuf_info() in the USB serial io_ti driver can copy a device controlled EEPROM descriptor length into a 10 byte heap buffer without checking that the descriptor Size matches sizeof(struct edge_ti_manuf_descriptor). A malicious USB device can advertise a Size value up to the TI I2C image limit and trigger a large heap overflow when the device is attached and the driver reads the descriptor. For the CVSS the PR:N is used because the attacker does not need an account on the host and only needs the malicious USB device to be processed by the vulnerable driver. Impact is at least kernel crash DoS and because this is a kernel heap overflow with device controlled input, confidentiality and integrity impact are plausible in worst case.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-53196"
},
{
"category": "external",
"summary": "RHBZ#2492750",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492750"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-53196",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-53196"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-53196",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53196"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2026062559-CVE-2026-53196-bcc6@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2026062559-CVE-2026-53196-bcc6@gregkh/T"
}
],
"release_date": "2026-06-25T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-09-09T01:07:10+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.\n\nRed Hat recommends treating all kernel errata as security-relevant. Given the kernel\u0027s fundamental role, any bug has a higher chance of impacting system security, even if that impact only becomes clear after a fix is published. Therefore, Red Hat prioritizes delivering fixes that improve our customers\u0027 overall security posture.\n\nBecause of this proactive approach, a patch may be associated with a CVE assignment at a future date. Retroactive CVE assignments are always documented in the corresponding errata and on Red Hat\u0027s CVE pages. We strongly advise against delaying updates, as doing so may leave your system exposed when protections are already available.",
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"restart_required": {
"category": "machine"
},
"url": "https://access.redhat.com/errata/RHSA-2026:65709"
},
{
"category": "workaround",
"details": "To mitigate this issue, prevent module io_ti from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.",
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}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "PHYSICAL",
"availabilityImpact": "HIGH",
"baseScore": 6.8,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
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"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "kernel: USB: serial: io_ti: fix heap overflow in get_manuf_info()"
},
{
"cve": "CVE-2026-64191",
"cwe": {
"id": "CWE-787",
"name": "Out-of-bounds Write"
},
"discovery_date": "2026-07-20T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2502872"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the Linux kernel\u0027s `i2c-stub` driver. A local user with access to the `/dev/i2c-*` device can exploit this vulnerability by issuing an I2C System Management Bus (SMBus) input/output control (ioctl) command with a specially crafted block transfer length. This invalid length can cause the driver to read or write beyond the allocated buffer, leading to a stack-out-of-bounds error and a system crash, resulting in a Denial of Service (DoS).",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: i2c: stub: Reject I2C block transfers with invalid length",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-64191"
},
{
"category": "external",
"summary": "RHBZ#2502872",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502872"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-64191",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-64191"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-64191",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64191"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2026072052-CVE-2026-64191-42fe@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2026072052-CVE-2026-64191-42fe@gregkh/T"
}
],
"release_date": "2026-07-20T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-09-09T01:07:10+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.\n\nRed Hat recommends treating all kernel errata as security-relevant. Given the kernel\u0027s fundamental role, any bug has a higher chance of impacting system security, even if that impact only becomes clear after a fix is published. Therefore, Red Hat prioritizes delivering fixes that improve our customers\u0027 overall security posture.\n\nBecause of this proactive approach, a patch may be associated with a CVE assignment at a future date. Retroactive CVE assignments are always documented in the corresponding errata and on Red Hat\u0027s CVE pages. We strongly advise against delaying updates, as doing so may leave your system exposed when protections are already available.",
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],
"restart_required": {
"category": "machine"
},
"url": "https://access.redhat.com/errata/RHSA-2026:65709"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.0,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
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]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "kernel: i2c: stub: Reject I2C block transfers with invalid length"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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