CVE-2026-68293
7.1 · HIGHOverview
CVE-2026-68293 is a high-severity vulnerability. It was published on August 10, 2026 and has a CVSS 3.1 base score of 7.1 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical Description
In the Linux kernel, the following vulnerability has been resolved:
net/mlx5: Fix MCIA register buffer overflow on 32 dword reads
The MCIA register can return up to 32 dwords (128 bytes) when the device
advertises the mcia_32dwords capability, but struct
mlx5_ifc_mcia_reg_bits only defines dword_0..11, leaving room for just
12 dwords (48 bytes) of data.
mlx5_query_mcia() clamps the read size to mlx5_mcia_max_bytes() and then
memcpy()s that many bytes out of the register, potentially reading past
the end of the 'out' buffer. On kernels built with FORTIFY_SOURCE this
is caught as a buffer overflow while reading the module EEPROM via
ethtool:
detected buffer overflow in memcpy
kernel BUG at lib/string_helpers.c:1048!
RIP: 0010:fortify_panic+0x13/0x20
Call Trace:
mlx5_query_mcia.isra.0+0x200/0x210 [mlx5_core]
mlx5_query_module_eeprom_by_page+0x4a/0xa0 [mlx5_core]
mlx5e_get_module_eeprom_by_page+0xbb/0x120 [mlx5_core]
eeprom_prepare_data+0xf3/0x170
ethnl_default_d
Remediation
Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Frequently Asked Questions
What is CVE-2026-68293?
CVE-2026-68293 is a high-severity vulnerability. It was published on August 10, 2026 and has a CVSS 3.1 base score of 7.1 (HIGH).
How severe is CVE-2026-68293?
This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2026-68293?
Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-68293?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-68293 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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