CVE-2002-2396: Buffer overflow in Advanced TFTP (atftp) 0.5 and 0.6, if installed setuid or setgid, may allow local users to

Routine

HIGH 7.2DOWNGRADE

CVE-2002-2396 is a high-severity flaw (CVSS 7.2) affecting advanced tftp. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in Advanced TFTP (atftp) 0.5 and 0.6, if installed setuid or setgid, may allow local users to execute arbitrary code via a long argument to the -g option.

Why this priority

High severity

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

Risk facts

CVSS score	7.2 (High)
EPSS exploit chance	0.4% (top 64%)
CISA exploited list	No
Weakness	CWE-119
Published	2002-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: remi lefebvre

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

Am I affected?

Timeline

2002-12-31 05:00 UTCPublished CVE record published
2026-06-16 22:01 UTCUpdated Record last modified

remi lefebvre advanced tftp DOWNGRADE

Affected: 0.5 · 0.6

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.5

1. Check installed version

apt-cache policy advanced-tftp || rpm -q advanced-tftp || advanced-tftp --version

2. No fixed release: DOWNGRADE to a release before 0.5 (Debian / Ubuntu)

apt-cache madison advanced-tftp sudo apt install advanced-tftp=<VERSION_BEFORE_0.5> sudo apt-mark hold advanced-tftp

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

dnf --showduplicates list advanced-tftp sudo dnf downgrade advanced-tftp-<VERSION_BEFORE_0.5> sudo dnf versionlock add advanced-tftp

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-2002-2396?

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

Is CVE-2002-2396 being exploited?

CVE-2002-2396 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-2002-2396 affect?

CVE-2002-2396 affects advanced tftp. Severity is high (CVSS 7.2). Buffer overflow in Advanced TFTP (atftp) 0.5 and 0.6, if installed setuid or setgid, may allow local users to execute arbitrary code via a long argument to the -g option.

How urgent is CVE-2002-2396?

Priority 34/100. High severity

References

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