CVE-2025-25066: nDPI through 4.12 has a potential stack-based buffer overflow in ndpi_address_cache_restore in lib/ndpi_cache.

Q: How do I fix CVE-2025-25066?

ndpi: upgrade to newer than 4.12. Exact commands for each OS are on this page.

Q: Is CVE-2025-25066 being exploited?

CVE-2025-25066 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-25066 affect?

CVE-2025-25066 affects ndpi. Severity is high (CVSS 8.1). nDPI through 4.12 has a potential stack-based buffer overflow in ndpi_address_cache_restore in lib/ndpi_cache.c.

Routine

HIGH 8.1UPGRADE

CVE-2025-25066 is a high-severity flaw (CVSS 8.1) affecting ndpi. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

nDPI through 4.12 has a potential stack-based buffer overflow in ndpi_address_cache_restore in lib/ndpi_cache.c.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.1 (High)
Attack vector	Local
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.2% (top 92%)
CISA exploited list	No
Weakness	CWE-121
Published	2025-02-03
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: ntop

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

Am I affected?

Timeline

2025-02-03 06:15 UTCPublished CVE record published
2026-06-17 09:00 UTCUpdated Record last modified

ntop ndpi UPGRADE

Affected: <= 4.12

Fixed in: newer than 4.12

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 4.12 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade ndpi

Note

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

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-2025-25066?

ndpi: upgrade to newer than 4.12. Exact commands for each OS are on this page.

Is CVE-2025-25066 being exploited?

CVE-2025-25066 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-2025-25066 affect?

CVE-2025-25066 affects ndpi. Severity is high (CVSS 8.1). nDPI through 4.12 has a potential stack-based buffer overflow in ndpi_address_cache_restore in lib/ndpi_cache.c.

How urgent is CVE-2025-25066?

Priority 30/100. High severity

References

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