CVE-2006-3619: Directory traversal vulnerability in FastJar 0.93, as used in Gnu GCC 4.1.1 and earlier, and 3.4.6 and earlier

Routine

LOW 2.6DOWNGRADE

CVE-2006-3619 is a low-severity flaw (CVSS 2.6) affecting fastjar. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Directory traversal vulnerability in FastJar 0.93, as used in Gnu GCC 4.1.1 and earlier, and 3.4.6 and earlier, allows user-assisted attackers to overwrite arbitrary files via a .jar file containing filenames with "../" sequences.

Why this priority

EPSS top 10%: very likely to be exploited

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

Risk facts

CVSS score	2.6 (Low)
EPSS exploit chance	3.9% (top 10%)
CISA exploited list	No
Published	2006-07-25
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: fastjar

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

Am I affected?

Timeline

2006-07-25 19:17 UTCPublished CVE record published
2026-06-16 22:27 UTCUpdated Record last modified

fastjar fastjar DOWNGRADE

Affected: 0.93

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.93

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.93 (Debian / Ubuntu)

apt-cache madison fastjar sudo apt install fastjar=<VERSION_BEFORE_0.93> sudo apt-mark hold fastjar

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

dnf --showduplicates list fastjar sudo dnf downgrade fastjar-<VERSION_BEFORE_0.93> sudo dnf versionlock add fastjar

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-2006-3619?

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

Is CVE-2006-3619 being exploited?

CVE-2006-3619 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-2006-3619 affect?

CVE-2006-3619 affects fastjar. Severity is low (CVSS 2.6). Directory traversal vulnerability in FastJar 0.93, as used in Gnu GCC 4.1.1 and earlier, and 3.4.6 and earlier, allows user-assisted attackers to overwrite arbitrary files via a .jar file containing filenames with "../" sequences.

How urgent is CVE-2006-3619?

Priority 32/100. EPSS top 10%: very likely to be exploited

Related CVEs

CVE-2010-2322 LOW 2.6 DOWNGRADE Absolute path traversal vulnerability in the extract_jar function in jartool.c in FastJar 0.98 allows remote a
CVE-2010-0831 MEDIUM 5.8 DOWNGRADE Directory traversal vulnerability in the extract_jar function in jartool.c in FastJar 0.98 allows remote attac

References

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