CVE-2025-53870: An improper neutralization of special elements used in an os command ('os command injection') vulnerability in

Routine

MEDIUM 6.7UPGRADEUPGRADE

CVE-2025-53870 is a medium-severity flaw (CVSS 6.7) affecting fortiap, fortiap-w2. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet FortiAP 7.6.0 through 7.6.2, FortiAP 7.4.0 through 7.4.5, FortiAP 7.2 all versions, FortiAP 7.0 all versions, FortiAP 6.4 all versions, FortiAP-W2 7.4.0 through 7.4.4, FortiAP-W2 7.2 all versions, FortiAP-W2 7.0 all versions may allow an authenticated attacker to execute unauthorized code or commands via a specifically crafted

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.7 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	0.6% (top 54%)
CISA exploited list	No
Weakness	CWE-78
Published	2026-05-12
Last modified	2026-10-14

Publisher (CNA): Fortinet, Inc. · Vendor: fortinet

Last updated 2026-10-14 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-12 18:16 UTCPublished CVE record published
2026-10-14 13:10 UTCUpdated Record last modified

fortinet fortiap UPGRADE

Affected: >= 6.4.0 and < 7.4.6 · >= 7.6.0 and < 7.6.3

Fixed in: 7.4.6, 7.6.3

Safe to downgrade to: a release before 6.4.0

1. Check installed version

apt-cache policy fortiap || rpm -q fortiap || fortiap --version

2. UPGRADE to 7.4.6 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade fortiap

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade fortiap

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 6.4.0 (Debian / Ubuntu)

apt-cache madison fortiap sudo apt install fortiap=<VERSION_BEFORE_6.4.0> sudo apt-mark hold fortiap

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list fortiap sudo dnf downgrade fortiap-<VERSION_BEFORE_6.4.0> sudo dnf versionlock add fortiap

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

fortinet fortiap-w2 UPGRADE

Affected: >= 7.2.0 and < 7.2.6 · >= 7.4.0 and < 7.4.5

Fixed in: 7.2.6, 7.4.5

Safe to downgrade to: a release before 7.2.0

1. Check installed version

apt-cache policy fortiap-w2 || rpm -q fortiap-w2 || fortiap-w2 --version

2. UPGRADE to 7.2.6 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade fortiap-w2

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade fortiap-w2

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 7.2.0 (Debian / Ubuntu)

apt-cache madison fortiap-w2 sudo apt install fortiap-w2=<VERSION_BEFORE_7.2.0> sudo apt-mark hold fortiap-w2

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list fortiap-w2 sudo dnf downgrade fortiap-w2-<VERSION_BEFORE_7.2.0> sudo dnf versionlock add fortiap-w2

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-53870?

fortiap: upgrade to 7.4.6, 7.6.3; fortiap-w2: upgrade to 7.2.6, 7.4.5. Exact commands for each OS are on this page.

Is CVE-2025-53870 being exploited?

CVE-2025-53870 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-53870 affect?

CVE-2025-53870 affects fortiap, fortiap-w2. Severity is medium (CVSS 6.7). An improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet FortiAP 7.6.0 through 7.6.2, FortiAP 7.4.0 through 7.4.5, FortiAP 7.2 all versions, FortiAP 7.0 all versions, FortiAP 6.

How urgent is CVE-2025-53870?

Priority 35/100. No elevated risk signals yet.

Software pages

Fortinet vulnerabilities

Related CVEs

CVE-2025-53680 MEDIUM 6.7 UPGRADE UPGRADE An improper neutralization of special elements used in an OS command ("OS Command Injection") vulnerability [C

References

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