CVE-2026-23122

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 36/100
Published: 2026-02-14 Modified: 2026-11-05 First seen: 2026-11-05 Status: active

Attack Surface

Low Complexity No Interaction

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: None
S: Unchanged
C: None
I: None
A: High

Description

In the Linux kernel, the following vulnerability has been resolved: igc: Reduce TSN TX packet buffer from 7KB to 5KB per queue The previous 7 KB per queue caused TX unit hangs under heavy timestamping load. Reducing to 5 KB avoids these hangs and matches the TSN recommendation in I225/I226 SW User Manual Section 7.5.4. The 8 KB "freed" by this change is currently unused. This reduction is not expected to impact throughput, as the i226 is PCIe-limited for small TSN packets rather than TX-buffer-limited.

Affected Software (10)

VendorProductVersion
Linux Linux 0d58cdc902dace2298406b3972def04f55e3d775 < 88037973c8ef6032bf84e9955595f8b20bc14c21
Linux Linux 0d58cdc902dace2298406b3972def04f55e3d775 < 8ad1b6c1e63d25f5465b7a8aa403bdcee84b86f9
Linux Linux 6.16
linux linux_kernel 6.16 – 6.18.8
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19

Bug Bounty Relevance

36 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

5.5 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.12%
Raw Score 0.001200
Percentile 1.9%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00120
2026-11-13
0.00120
2026-11-12
0.00120
2026-11-10
0.00120
2026-11-09
0.00117
2026-11-08
0.00117
2026-11-07
0.00117
2026-11-06
0.00117
2026-11-05
0.00117

Intelligence Sources

mitre ref →
nvd ref →