CVE-2002-0598: Format string vulnerability in Foundstone FScan 1.12 with banner grabbing enabled allows remote attackers to e

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HIGH 7.5DOWNGRADE

CVE-2002-0598 is a high-severity flaw (CVSS 7.5) affecting fscan. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Format string vulnerability in Foundstone FScan 1.12 with banner grabbing enabled allows remote attackers to execute arbitrary code on the scanning system via format string specifiers in the server banner.

Why this priority

High severity

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	3.0% (top 13%)
CISA exploited list	No
Published	2002-06-18
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: foundstone

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

Am I affected?

Timeline

2002-06-18 04:00 UTCPublished CVE record published
2026-06-16 21:57 UTCUpdated Record last modified

foundstone fscan DOWNGRADE

Affected: 1.12

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.12

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.12 (Debian / Ubuntu)

apt-cache madison fscan sudo apt install fscan=<VERSION_BEFORE_1.12> sudo apt-mark hold fscan

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

dnf --showduplicates list fscan sudo dnf downgrade fscan-<VERSION_BEFORE_1.12> sudo dnf versionlock add fscan

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-2002-0598?

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

Is CVE-2002-0598 being exploited?

CVE-2002-0598 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-2002-0598 affect?

CVE-2002-0598 affects fscan. Severity is high (CVSS 7.5). Format string vulnerability in Foundstone FScan 1.12 with banner grabbing enabled allows remote attackers to execute arbitrary code on the scanning system via format string specifiers in the server banner.

How urgent is CVE-2002-0598?

Priority 48/100. High severity

References

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