---
title: "CVE-2026-80945: Linux kernel crypto: iaa - Data Tampering"
description: "Linux kernel crypto: iaa contains a data tampering vulnerability caused by improper unmapping of destination buffer before software fallback on decompress, letting attackers cause data corruption, exploit requires hardware analytics error triggering fallback."
url: https://panop.io/threat-heartbeat/CVE-2026-80945/
---

# CVE-2026-80945 Linux kernel crypto: iaa - Data Tampering

Linux kernel crypto: iaa contains a data tampering vulnerability caused by improper unmapping of destination buffer before software fallback on decompress, letting attackers cause data corruption, exploit requires hardware analytics error triggering fallback.

CVSS base score 9.1 /10

Critical

CISA KEV

Not listed

Public exploit

None known

EPSS

0.50% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-80945)

## Details

Type

Data Tampering

Impact

Data Tampering

CVSS vector

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

Published

11 September 2026

Updated

15 October 2026

## Vendor fix

Update to the latest Linux kernel version containing the fix.

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-2026-80945](https://nvd.nist.gov/vuln/detail/CVE-2026-80945)
- [https://git.kernel.org/stable/c/c0279e5ea2aad99d8b91f1a6579d751cc9eb2408](https://git.kernel.org/stable/c/c0279e5ea2aad99d8b91f1a6579d751cc9eb2408)
- [https://git.kernel.org/stable/c/94a25930477113730372e0fa2985da4c5ac95c9a](https://git.kernel.org/stable/c/94a25930477113730372e0fa2985da4c5ac95c9a)
- [https://git.kernel.org/stable/c/fc933a4a419ba8a75da28666a018602c44846953](https://git.kernel.org/stable/c/fc933a4a419ba8a75da28666a018602c44846953)
- [https://git.kernel.org/stable/c/fcd86180ef78b0e41763faef7c6d2de7dfb50c1a](https://git.kernel.org/stable/c/fcd86180ef78b0e41763faef7c6d2de7dfb50c1a)

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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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