CVE-2025-43892
published 2026-07-14CVE-2025-43892: 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…
PriorityP425medium4.3CVSS 3.1
AVNACLPRLUINSUCLINAN
EPSS
0.38%
32.0th percentile
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.
Affected
13 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| fortinet | fortinet | — | — |
| fortinet | fortios | — | — |
| fortinet | fortios | 7.0.0 – 7.0.19 | — |
| fortinet | fortios | 7.2.0 – 7.2.13 | — |
| fortinet | fortios | 7.4.0 – 7.4.8 | — |
| fortinet | fortios | 7.6.0 – 7.6.2 | — |
| fortinet | fortiproxy | 7.2.0 – 7.2.15 | — |
| fortinet | fortiproxy | 7.4.0 – 7.4.13 | — |
| fortinet | fortiproxy | 7.6.0 – 7.6.5 | — |
| msrc | cbl2_kernel_5.15.167.1-1_on_cbl_mariner_2.0 | — | — |
| msrc | cbl2_kernel_5.15.180.1-1_on_cbl_mariner_2.0 | — | — |
| msrc | cbl_mariner_2.0_arm | — | — |
| msrc | cbl_mariner_2.0_x64 | — | — |
CVSS provenance
nvdv3.14.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
vendor_msrc4.7MEDIUM
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Fortinet
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 v...
vendor_fortinet·2026-07-14·CVSS 4.3
CVE-2025-43892 [MEDIUM] CWE-126 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 v...
CVE-2025-43892: 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 v...
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.
CWEs: CWE-126
CVSS: 4.3 (medium)
Affected products: FortiOS, Fortinet
Microsoft
memcg: protect concurrent access to mem_cgroup_idr
vendor_msrc·2024-08-13·CVSS 4.7
CVE-2024-43892 [MEDIUM] memcg: protect concurrent access to mem_cgroup_idr
memcg: protect concurrent access to mem_cgroup_idr
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
Linux: Linux
Customer Action Required: Yes
Remediation: CBL-Mariner Releases
Reference: https://learn.micr
VulDB
Fortinet FortiOS up to 7.0.19/7.2.13/7.4.3 Redirect buffer overflow
vuldb·2026-07-19·CVSS 4.3
CVE-2025-43892 [MEDIUM] Fortinet FortiOS up to 7.0.19/7.2.13/7.4.3 Redirect buffer overflow
A vulnerability identified as problematic has been detected in Fortinet FortiOS up to 7.0.19/7.2.13/7.4.3. This affects an unknown function of the component Redirect. This manipulation causes buffer overflow.
This vulnerability is handled as CVE-2025-43892. The attack can be initiated remotely. There is not any exploit available.
GHSA
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
ghsa_unreviewed·2026-07-14
CVE-2025-43892 [MEDIUM] CWE-126 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
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.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-07-14
Published