---
id: CVE-2026-119601
title: AFFLIB through 3.7.22 Heap Out-of-Bounds Write in af_get_page
summary: >-
  AFFLIB through 3.7.22 contains a heap out-of-bounds write vulnerability in
  af_get_page() that allows attackers to corrupt heap memory by supplying
  crafted AFF images with mismatched page and sector sizes. Attackers can set a
  page size la…
severity: medium
cvss: 6.1
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H'
cvssSource: cna
cwe:
  - CWE-787
vendor: sshock
product: AFFLIB
affected:
  - AFFLIB <= 3.7.22
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-05T21:28:53.694704Z'
exploitAvailable: true
published: '2026-10-30'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T21:29:11.823Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-119601'
references:
  - url: 'https://github.com/sshock/AFFLIBv3/issues/61'
  - url: >-
      https://github.com/sshock/AFFLIBv3/blob/v3.7.22/lib/afflib_pages.cpp#L309-L315
  - url: 'https://hackmd.io/@haindpwn/afflib-aff-get-page-sector-fill-oob-write'
  - url: 'https://github.com/sshock/AFFLIBv3'
  - url: >-
      https://www.vulncheck.com/advisories/afflib-through-3.7.22-heap-out-of-bounds-write-in-af-get-page
    label: >-
      VulnCheck Advisory: AFFLIB through 3.7.22 Heap Out-of-Bounds Write in
      af_get_page
tags:
  - cve.org
  - exploit-available
epss: 0.00121
epssPercentile: 0.01939
ingestedAt: '2026-11-05T16:07:30.246Z'
---

## Overview

AFFLIB through 3.7.22 contains a heap out-of-bounds write vulnerability in af_get_page() that allows attackers to corrupt heap memory by supplying crafted AFF images with mismatched page and sector sizes. Attackers can set a page size larger than and not a multiple of the sector size, causing the sector zero-fill loop to write past the buffer and crash forensic tools.

## Affected

- `AFFLIB <= 3.7.22`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.