CVE-2025-65875: An arbitrary file upload vulnerability in the AddFont() function of FPDF v1.86 and earlier allows attackers to

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HIGH 8.8DOWNGRADE

CVE-2025-65875 is a high-severity flaw (CVSS 8.8) affecting fpdf. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An arbitrary file upload vulnerability in the AddFont() function of FPDF v1.86 and earlier allows attackers to execute arbitrary code via uploading a crafted PHP file.

Why this priority

High severity

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.5% (top 61%)
CISA exploited list	No
Weakness	CWE-434
Published	2026-02-03
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: fpdf

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-02-03 18:16 UTCPublished CVE record published
2026-06-17 09:56 UTCUpdated Record last modified

fpdf fpdf DOWNGRADE

Affected: 1.8.6

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.8.6

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.8.6 (Debian / Ubuntu)

apt-cache madison fpdf sudo apt install fpdf=<VERSION_BEFORE_1.8.6> sudo apt-mark hold fpdf

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list fpdf sudo dnf downgrade fpdf-<VERSION_BEFORE_1.8.6> sudo dnf versionlock add fpdf

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-2025-65875?

fpdf: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-65875 being exploited?

CVE-2025-65875 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-2025-65875 affect?

CVE-2025-65875 affects fpdf. Severity is high (CVSS 8.8). An arbitrary file upload vulnerability in the AddFont() function of FPDF v1.86 and earlier allows attackers to execute arbitrary code via uploading a crafted PHP file.

How urgent is CVE-2025-65875?

Priority 41/100. High severity

Software pages

PHP vulnerabilities

References

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