CVE-2025-43892

Published Jul 14, 2026 CVSS 3.1 · 4.1 Medium EPSS < 1% KEV · Not listed
Description
A buffer over-read vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4 all versions may allow an authenticated remote attacker to return a portion of device memory in the redirect response via submitting a specially crafted request.

Remediation

Vendor Solution

Upgrade to FortiOS version 7.6.4 or above Upgrade to FortiOS version 7.4.9 or above Fortinet remediated this issue in FortiSASE version 25.4.b and hence customers do not need to perform any action. Upgrade to FortiProxy version 7.6.6 or above Upgrade to FortiProxy version 7.4.14 or above

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Title Buffer Over‑Read in FortiOS Redirect Response
Type Values Removed Values Added
Title Buffer Over‑Read in FortiOS Redirect Response
Type Values Removed Values Added
Title Authenticated Remote Buffer Over-Read in FortiOS Leading to Memory Disclosure
Type Values Removed Values Added
Title Authenticated Remote Buffer Over-Read in FortiOS Leading to Memory Disclosure
Type Values Removed Values Added
Description A buffer over-read vulnerability in Fortinet FortiOS 7.6.0 through 7.6.2, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2 all versions may allow an authenticated remote attacker to return a portion of device memory in the redirect response via submitting a specially crafted request. A buffer over-read vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4 all versions may allow an authenticated remote attacker to return a portion of device memory in the redirect response via submitting a specially crafted request.
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description A buffer over-read vulnerability in Fortinet FortiOS 7.6.0 through 7.6.2, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2 all versions may allow an authenticated remote attacker to return a portion of device memory in the redirect response via submitting a specially crafted request.
First Time appeared Fortinet
Fortinet fortios
Weaknesses CWE-126
CPEs cpe:2.3:o:fortinet:fortios:7.0.0:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.0.10:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.0.11:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.0.12:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.0.13:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.0.14:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.0.15:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.0.16:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.0.17:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.0.18:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.0.19:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.0.1:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.0.2:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.0.3:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.0.4:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.0.5:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.0.6:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.0.7:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.0.8:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.0.9:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.2.0:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.2.10:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.2.11:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.2.12:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.2.13:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.2.1:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.2.2:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.2.3:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.2.4:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.2.5:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.2.6:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.2.7:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.2.8:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.2.9:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.4.0:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.4.1:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.4.2:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.4.3:*:*:*:*:*:*:*
Vendors & Products Fortinet
Fortinet fortios
References
Metrics cvssV3_1

{'score': 4.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
fortinet
Published
Updated
Oct 15, 2026, 1:09 AM
Reserved
Apr 18, 2025, 2:46 PM
Status
Modified
Published
Jul 14, 2026, 4:16 PM
Modified
Sep 29, 2026, 2:10 PM