# CVE-2026-68440: linux: In the Linux kernel, the following vulnerability has been resolved:  net: txgbe: fix heap overflow when reading modul...

CVE-2026-68440 is fixed in linux on 1 platform by DEBIAN-CVE-2026-68440 (version 7.1.6-1), released August 13, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-68440
- Priority: High
- CVSS: 7.8 (high)
- EPSS: 0.0012
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Aug 12, 2026

## Description

In the Linux kernel, the following vulnerability has been resolved:  net: txgbe: fix heap overflow when reading module EEPROM  txgbe_read_eeprom_hostif() always copies round_up(length, 4) bytes into the caller buffer, which ethtool allocates with exactly 'length' bytes. A non-4-aligned length therefore causes an out-of-bounds write. Copy only the remaining bytes on the final dword instead.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 14 | 7.1.6-1 | [DEBIAN-CVE-2026-68440](https://patchblox.com/security/data/fix/linux/debian-cve-2026-68440.md) | Aug 13, 2026 |

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Data as of 2026-11-08T13:06:02Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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