CVE-2002-0412: Format string vulnerability in TraceEvent function for ntop before 2.1 allows remote attackers to execute arbi

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HIGH 7.5DOWNGRADE

CVE-2002-0412 is a high-severity flaw (CVSS 7.5) affecting ntop. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Format string vulnerability in TraceEvent function for ntop before 2.1 allows remote attackers to execute arbitrary code by causing format strings to be injected into calls to the syslog function, via (1) an HTTP GET request, (2) a user name in HTTP authentication, or (3) a password in HTTP authentication.

Why this priority

High severity
EPSS top 9%: very likely to be exploited

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	4.2% (top 9%)
CISA exploited list	No
Published	2002-08-12
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: luca deri

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2002-08-12 04:00 UTCPublished CVE record published
2026-06-16 21:57 UTCUpdated Record last modified

luca deri ntop DOWNGRADE

Affected: 2.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.0 (Debian / Ubuntu)

apt-cache madison ntop sudo apt install ntop=<VERSION_BEFORE_2.0> sudo apt-mark hold ntop

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

dnf --showduplicates list ntop sudo dnf downgrade ntop-<VERSION_BEFORE_2.0> sudo dnf versionlock add ntop

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-2002-0412?

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

Is CVE-2002-0412 being exploited?

CVE-2002-0412 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-2002-0412 affect?

CVE-2002-0412 affects ntop. Severity is high (CVSS 7.5). Format string vulnerability in TraceEvent function for ntop before 2.1 allows remote attackers to execute arbitrary code by causing format strings to be injected into calls to the syslog function, via (1) an HTTP GET request, (2) a user nam

How urgent is CVE-2002-0412?

Priority 49/100. High severity; EPSS top 9%: very likely to be exploited

Related CVEs

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CVE-2009-2732 MEDIUM 5.0 UPGRADE The checkHTTPpassword function in http.c in ntop 3.3.10 and earlier allows remote attackers to cause a denial
CVE-2005-3387 MEDIUM 4.6 UPGRADE The startup script in packages/RedHat/ntop.init in ntop before 3.2, when ntop.conf is writable by users beside
CVE-2000-0706 HIGH 10.0 DOWNGRADE Buffer overflows in ntop running in web mode allows remote attackers to execute arbitrary commands.
CVE-2000-0705 MEDIUM 5.0 DOWNGRADE ntop running in web mode allows remote attackers to read arbitrary files via a .

References

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