CVE-2026-98143 Vulnerability Analysis & Exploit Details

CVE-2026-98143
Vulnerability Scoring

7.8
/10
Very High Risk

Highly exploitable, CVE-2026-98143 poses a critical security risk that could lead to severe breaches.

Attack Complexity Details

  • Attack Complexity: Low
    Exploits can be performed without significant complexity or special conditions.
  • Attack Vector: Local
    Vulnerability requires local system access.
  • Privileges Required: Low
    Some privileges are necessary to exploit the vulnerability.
  • Scope: Unchanged
    Exploit remains within the originally vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2026-98143 Details

Status: Analyzed

Last updated: 🕡 26 Oct 2026, 18:35 UTC
Originally published on: 🕚 25 Sep 2026, 11:17 UTC

Time between publication and last update: 31 days

CVSS Release: version 3

CVSS3 Source

416baaa9-dc9f-4396-8d5f-8c081fb06d67

CVSS3 Type

Secondary

CVSS3 Vector

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

CVE-2026-98143 Vulnerability Summary

CVE-2026-98143: In the Linux kernel, the following vulnerability has been resolved: accel: ethosu: Don't read the U65 rounding mode as a storage mode Bits 15:14 of NPU_SET_{IFM,OFM}_PRECISION select the activation storage mode on U85 only. On U65 the same field holds the rounding mode, and the command stream parser has read it as a storage mode since the driver was added. That went unnoticed while unknown values fell through the switch, but now that they are rejected, every U65 command stream that asks for natural rounding (2) fails CMDSTREAM_BO_CREATE with -EINVAL. Mesa emits it for average pooling, concatenation, split, unpack, strided slice, LUT and argmax, which is 72 failures of the Teflon test suite on an i.MX93. Truncating rounding (1) is misread as well: it picks the two-tile address path and computes a bogus feature map size from tile bases the command stream never set. Read the field as a storage mode only on the hardware where it is one.

Assessing the Risk of CVE-2026-98143

Access Complexity Graph

The exploitability of CVE-2026-98143 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2026-98143

CVE-2026-98143 presents an accessible attack vector with minimal effort required. Restricting access controls and implementing security updates are critical to reducing exploitation risks.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2026-98143, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2026-98143, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: High
    Exploiting CVE-2026-98143 can result in unauthorized access to sensitive data, severely compromising data privacy.
  • Integrity: High
    CVE-2026-98143 could allow unauthorized modifications to data, potentially affecting system reliability and trust.
  • Availability: High
    CVE-2026-98143 can disrupt system operations, potentially causing complete denial of service (DoS).

CVE-2026-98143 References

External References

CWE Common Weakness Enumeration

CWE-681

Vulnerable Configurations

  • cpe:2.3:o:linux:linux_kernel:6.19:-:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.19:-:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.19.1:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.19.1:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.19.3:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.19.3:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.19.4:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.19.4:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.19.6:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.19.6:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.19.7:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.19.7:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.19.8:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.19.8:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.19.9:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.19.9:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.19.10:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.19.10:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.19.11:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.19.11:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.19.12:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.19.12:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.19.13:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.19.13:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.19.14:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.19.14:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.19:rc3:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.19:rc3:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.19:rc4:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.19:rc4:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.19:rc5:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.19:rc5:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.19:rc6:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.19:rc6:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.19:rc7:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.19:rc7:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.19:rc8:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:6.19:rc8:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.0:-:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.0:-:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.0.1:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.0.1:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.0.2:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.0.2:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.0.3:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.0.3:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.0.4:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.0.4:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.0.5:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.0.5:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.0.6:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.0.6:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.0.7:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.0.7:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.0.8:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.0.8:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.0.9:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.0.9:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.0.10:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.0.10:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.0.11:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.0.11:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.0.12:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.0.12:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.0.13:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.0.13:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.0.14:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.0.14:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.1:-:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.1:-:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.1.1:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.1.1:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.1.2:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.1.2:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.1.3:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.1.3:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.1.4:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.1.4:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.1.5:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.1.5:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.1.6:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.1.6:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.1.7:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.1.7:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.1.8:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.1.8:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.1.9:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.1.9:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.1.10:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.1.10:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.1.11:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.1.11:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.1.12:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.1.12:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.1.13:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.1.13:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.1:rc5:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.1:rc5:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.1:rc6:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.1:rc6:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.1:rc7:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.1:rc7:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.2:-:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.2:-:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.2.1:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.2.1:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.2.2:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.2.2:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.2.6:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.2.6:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.3:rc1:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:7.3:rc1:*:*:*:*:*:*

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