CVE-2026-53055

CRITICAL
INFO Priority: 0.04 BB Relevance: 80/100
Published: 2026-06-24 Modified: 2026-10-25 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

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

Description

In the Linux kernel, the following vulnerability has been resolved: crypto: hisilicon/sec2 - prevent req used-after-free for sec During packet transmission, if the system is under heavy load, the hardware might complete processing the packet and free the request memory (req) before the transmission function finishes. If the software subsequently accesses this req, a use-after-free error will occur. The qp_ctx memory exists throughout the packet sending process, so replace the req with the qp_ctx.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
linux linux_kernel 6.17 – 6.18.33
linux linux_kernel 6.19 – 7.0.10

Bug Bounty Relevance

80 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

9.8 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

0.43%
Raw Score 0.004300
Percentile 37.2%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00430
2026-10-28
0.00430

Intelligence Sources

nvd ref →