---
title: "CVE-2026-90141: Linux Kernel - Integer Overflow"
description: "Linux kernel contains an integer overflow in ipvs ftp helper port/address parsing caused by unchecked accumulation of decimal digits, letting attackers craft FTP responses with truncated port/address, exploit requires crafted FTP PASV/EPSV response."
url: https://panop.io/threat-heartbeat/CVE-2026-90141/
---

# CVE-2026-90141 Linux Kernel - Integer Overflow

Linux kernel contains an integer overflow in ipvs ftp helper port/address parsing caused by unchecked accumulation of decimal digits, letting attackers craft FTP responses with truncated port/address, exploit requires crafted FTP PASV/EPSV response.

CVSS base score 7.3 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.45% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-90141)

## Details

Type

Integer Overflow

Impact

Denial Of Service

CVSS vector

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

Published

17 September 2026

Updated

15 October 2026

## Vendor fix

Update to the latest Linux kernel version with the fix applied.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-90141](https://nvd.nist.gov/vuln/detail/CVE-2026-90141)
- [https://git.kernel.org/stable/c/d02de9a7a7e2484da0cf37e50614840623b98a62](https://git.kernel.org/stable/c/d02de9a7a7e2484da0cf37e50614840623b98a62)
- [https://git.kernel.org/stable/c/deaa88fa010ba0dfc554d09e006ddd1ce9945c82](https://git.kernel.org/stable/c/deaa88fa010ba0dfc554d09e006ddd1ce9945c82)
- [https://git.kernel.org/stable/c/e625a9477d12baaff4025c5f9989184a907ea8fc](https://git.kernel.org/stable/c/e625a9477d12baaff4025c5f9989184a907ea8fc)
- [https://git.kernel.org/stable/c/fc1493c905d7e0bc8830c1d83915cb7831daf1a1](https://git.kernel.org/stable/c/fc1493c905d7e0bc8830c1d83915cb7831daf1a1)
- [https://git.kernel.org/stable/c/00bcc6d679262ea42688fba1d7819ea6e56f12ef](https://git.kernel.org/stable/c/00bcc6d679262ea42688fba1d7819ea6e56f12ef)
- [https://git.kernel.org/stable/c/4aed450adaee3a021db27be94c61fe025b0d05ff](https://git.kernel.org/stable/c/4aed450adaee3a021db27be94c61fe025b0d05ff)
- [https://git.kernel.org/stable/c/50cb9b7263a2ed01f7d2f97818a800c2ee05f661](https://git.kernel.org/stable/c/50cb9b7263a2ed01f7d2f97818a800c2ee05f661)
- [https://git.kernel.org/stable/c/b1908bff0faaa94d55be72da65879cad632e8236](https://git.kernel.org/stable/c/b1908bff0faaa94d55be72da65879cad632e8236)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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