CVE-2026-23110VulnerabilityPublished 19 Aug 2026Updated 29 Oct 2026

Red Hat Security Advisory: kernel security, bug fix, and enhancement update

Affects Red Hat kernel security,Source GCVE Database

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Mentioned vulnerabilities

Authoritative record:CVE-2026-23110· High

Not known to be exploited · fixed in Red Hat package updates : patch Red Hat kernel security, soon.

Data as of 29 Oct 2026, 10:07 UTC

Severity

High

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS: 0.1% chance of exploitation in 30 days – higher than 1% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in fe2f8ad6f0999db3b318359a01ee0108c703a8c3, cc872e35c0df80062abc71268d690a2f749e542e, 219f009ebfd1ef3970888ee9eef4c8a06357f862 +3

Exploitation evidence

Disclosed: evidence found.
CVE published 4 Feb 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 6eb045e092efefafc6687409a6fa6d1dabf0fb69, < fe2f8ad6f0999db3b318359a01ee0108c703a8c3	Fixed in fe2f8ad6f0999db3b318359a01ee0108c703a8c3
LinuxLinux	Affected ≥ 6eb045e092efefafc6687409a6fa6d1dabf0fb69, < cc872e35c0df80062abc71268d690a2f749e542e	Fixed in cc872e35c0df80062abc71268d690a2f749e542e
LinuxLinux	Affected ≥ 6eb045e092efefafc6687409a6fa6d1dabf0fb69, < 219f009ebfd1ef3970888ee9eef4c8a06357f862	Fixed in 219f009ebfd1ef3970888ee9eef4c8a06357f862
LinuxLinux	Affected ≥ 6eb045e092efefafc6687409a6fa6d1dabf0fb69, < 64ae21b9c4f0c7e60cf47a53fa7ab68852079ef0	Fixed in 64ae21b9c4f0c7e60cf47a53fa7ab68852079ef0
LinuxLinux	Affected ≥ 6eb045e092efefafc6687409a6fa6d1dabf0fb69, < 9fdc6f28d5e81350ab1d2cac8389062bd09e61e1	Fixed in 9fdc6f28d5e81350ab1d2cac8389062bd09e61e1
LinuxLinux	Affected ≥ 6eb045e092efefafc6687409a6fa6d1dabf0fb69, < 6d9a367be356101963c249ebf10ea10b32886607	Fixed in 6d9a367be356101963c249ebf10ea10b32886607

AI-suggested

Red Hat has released updated kernel packages for Red Hat Enterprise Linux 9.6 Extended Update Support that address these vulnerabilities. Users should apply the provided kernel updates promptly and reboot affected systems to ensure the fixes take effect. Red Hat treats all kernel errata as security-relevant and strongly advises against delaying these updates to maintain system security.

Description

Red Hat has released a security advisory for kernel updates addressing multiple vulnerabilities in the Linux kernel. The fixes include resolving race conditions in SCSI error handling (CVE-2026-23110), preventing crashes from unvalidated pointers in ATM networking code (CVE-2026-31411), correcting cryptographic IV copying (CVE-2026-53016), and fixing out-of-bounds writes in device-mapper logging (CVE-2026-53059). These updates are part of Red Hat Enterprise Linux 9.6 Extended Update Support. The kernel update also includes bug fixes and enhancements unrelated to security. Systems must be rebooted after applying the update for changes to take effect.

Impact

The vulnerabilities fixed in this advisory could lead to kernel crashes, memory corruption, or improper error handling within the Linux kernel. While the advisory rates the overall security impact as Moderate, these issues affect core kernel components such as SCSI, networking, cryptography, and device-mapper subsystems. Exploitation could potentially impact system stability and security, but no known exploits in the wild have been reported. The kernel's fundamental role means any bug may have broader security implications.

CWE-821Incorrect Synchronization (opens in a new tab)
Base weakness
The product utilizes a shared resource in a concurrent manner, but it does not correctly synchronize access to the resource.
CWE-822Untrusted Pointer Dereference (opens in a new tab)
Base weakness
The product obtains a value from an untrusted source, converts this value to a pointer, and dereferences the resulting pointer.
OWASP Cheat Sheets
XML Security (opens in a new tab)
Mass Assignment (opens in a new tab)
OWASP ASVS 4.0.3
V13.3.1 (opens in a new tab)
V5.1.4 (opens in a new tab)
V5.1.3 (opens in a new tab)
Attack patterns
Pointer Manipulation (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).
CWE-805Buffer Access with Incorrect Length Value (opens in a new tab)
Base weaknessLikelihood of exploit: High
The product uses a sequential operation to read or write a buffer, but it uses an incorrect length value that causes it to access memory that is outside of the bounds of the buffer.
Requirements · Language Selection
Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
Architecture and Design · Libraries or Frameworks
Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
Operation · Build and Compilation · Environment Hardening
Use automatic buffer overflow detection mechanisms that are offered by certain compilers or compiler extensions. Examples include: the Microsoft Visual Studio /GS flag, Fedora/Red Hat FORTIFY_SOURCE GCC flag, StackGuard, and ProPolice, which provide various mechanisms including canary-based detection and range/index…
OWASP Cheat Sheets
XML Security (opens in a new tab)
Mass Assignment (opens in a new tab)
OWASP ASVS 4.0.3
V13.3.1 (opens in a new tab)
V5.1.4 (opens in a new tab)
V5.1.3 (opens in a new tab)
Attack patterns
Overflow Buffers (opens in a new tab)
SOAP Array Overflow (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).
CWE-190Integer Overflow or Wraparound (opens in a new tab)
Base weaknessLikelihood of exploit: Medium
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
Requirements
Ensure that all protocols are strictly defined, such that all out-of-bounds behavior can be identified simply, and require strict conformance to the protocol.
Requirements · Language Selection
Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
Architecture and Design · Libraries or Frameworks
Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
OWASP Cheat Sheets
XML Security (opens in a new tab)
Mass Assignment (opens in a new tab)
OWASP ASVS 4.0.3
V5.4.3 (opens in a new tab)
V13.3.1 (opens in a new tab)
V5.1.4 (opens in a new tab)
Attack patterns
Forced Integer Overflow (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

Community reviews

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 29 Oct 2026, 10:07 UTC

WeaknessesCWE-821, CWE-822, CWE-805 +1

Technical details

References

Community reviews

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