CVE-2025-25248: Integer Overflow on SSL-VPN bookmarks

Published Aug 12, 2025
·
Updated

An Integer Overflow or Wraparound vulnerability [CWE-190] in FortiOS version 7.6.2 and below, version 7.4.7 and below, version 7.2.10 and below, 7.2 all versions, 6.4 all versions, FortiProxy version 7.6.2 and below, version 7.4.3 and below, 7.2 all versions, 7.0 all versions, 2.0 all versions and 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 SSL-VPN RDP and VNC bookmarks may allow an authenticated user to affect the device SSL-VPN availability via crafted requests.

Other sources

An Integer Overflow or Wraparound vulnerability [CWE-190] in FortiOS, FortiPAM and FortiProxy SSL-VPN RDP and VNC bookmarks may allow an authenticated user to affect the device SSL-VPN availability via crafted requests.

— FortiGuard

Affected Software

23 affected componentsFixes available
Fortinet FortiOS>=7.6.0<=7.6.2
Fortinet FortiOS>=7.4.0<=7.4.7
Fortinet FortiOS>=7.2.0<=7.2.10
Fortinet FortiOS>=7.0
Fortinet FortiOS>=6.4
Fortinet FortiPAM=.
Fortinet FortiPAM>=1.4.0<=1.4.2
Fortinet FortiPAM>=1.3
Fortinet FortiPAM>=1.2
Fortinet FortiPAM>=1.1
Fortinet FortiPAM>=1.0
Fortinet FortiProxy>=7.6.0<=7.6.2
Fortinet FortiProxy>=7.4.0<=7.4.3
Fortinet FortiProxy>=7.2
Fortinet FortiProxy>=7.0
Fortinet FortiProxy>=2.0
Fortinet FortiOS>=6.4.0<7.2.11
Fortinet FortiOS>=7.4.0<7.4.8
Fortinet FortiOS>=7.6.0<7.6.3
Fortinet FortiPAM>=1.0.0<1.4.3
Fortinet FortiPAM=1.5.0
Fortinet FortiProxy>=2.0.0<7.4.4
Fortinet FortiProxy>=7.6.0<7.6.3

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade FortiOS to a version that resolves this vulnerability.

    Fixed in 7.2.11
  2. Upgrade

    Upgrade FortiOS to a version that resolves this vulnerability.

    Fixed in 7.4.8
  3. Upgrade

    Upgrade FortiOS to a version that resolves this vulnerability.

    Fixed in 7.6.3
  4. Upgrade

    Upgrade FortiPAM to a version that resolves this vulnerability.

    Fixed in 1.4.3
  5. Upgrade

    Upgrade FortiPAM to a version that resolves this vulnerability.

    Fixed in 1.5.1
  6. Upgrade

    Upgrade FortiProxy to a version that resolves this vulnerability.

    Fixed in 7.4.4
  7. Upgrade

    Upgrade FortiProxy to a version that resolves this vulnerability.

    Fixed in 7.6.3

Event History

Aug 12, 2025
Advisory Published
via FortiGuard·12:00 AM
Data Sourced
via FortiGuard·12:00 AM
DescriptionSeverityWeaknessAffected Software
CVE Published
via MITRE·06:59 PM
Data Sourced
via MITRE·06:59 PM
RemedyDescriptionSeverityWeakness
Data Sourced
via NVD·07:15 PM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2025-25248?

CVE-2025-25248 has been classified as a high-severity vulnerability that can lead to potential exploitation via integer overflow.

2

How do I fix CVE-2025-25248?

To remediate CVE-2025-25248, upgrade to FortiOS version 7.6.3 or above, or FortiProxy version 7.6.3 or above, depending on your affected product.

3

What versions of FortiOS are affected by CVE-2025-25248?

CVE-2025-25248 affects FortiOS versions 7.6.2 and below, 7.4.7 and below, 7.2.10 and below, along with all versions of 7.2, 6.4, and earlier.

4

What products are impacted by CVE-2025-25248?

CVE-2025-25248 impacts FortiOS, FortiProxy, and FortiPAM products depending on their specified versions.

5

Is there a workaround for CVE-2025-25248?

There are no available workarounds for CVE-2025-25248; updating to the fixed versions is the recommended action.

Company

Resources

Contact

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