CVE-2006-4948: Stack-based buffer overflow in tftpd.exe in ProSysInfo TFTP Server TFTPDWIN 0.4.2 and earlier allows remote at

Q: How do I fix CVE-2006-4948?

tftp server tftpdwin: upgrade to newer than 0.4.2. Exact commands for each OS are on this page.

Q: Is CVE-2006-4948 being exploited?

CVE-2006-4948 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-2006-4948 affect?

CVE-2006-4948 affects tftp server tftpdwin. Severity is high (CVSS 7.5). Stack-based buffer overflow in tftpd.exe in ProSysInfo TFTP Server TFTPDWIN 0.4.2 and earlier allows remote attackers to execute arbitrary code or cause a denial of service via a long file name. NOTE: the provenance of this information is u

Q: How urgent is CVE-2006-4948?

Priority 56/100. High severity; EPSS top 1%: very likely to be exploited; Public exploit reference

This week

HIGH 7.5UPGRADE

CVE-2006-4948 is a high-severity flaw (CVSS 7.5) affecting tftp server tftpdwin. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Stack-based buffer overflow in tftpd.exe in ProSysInfo TFTP Server TFTPDWIN 0.4.2 and earlier allows remote attackers to execute arbitrary code or cause a denial of service via a long file name. NOTE: the provenance of this information is unknown; the details are obtained from third party information.

Why this priority

High severity
EPSS top 1%: very likely to be exploited
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	55.6% (top 1%)
CISA exploited list	No
Published	2006-09-23
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: prosysinfo

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

Am I affected?

Timeline

2006-09-23 01:07 UTCPublished CVE record published
2026-06-16 22:30 UTCUpdated Record last modified

prosysinfo tftp server tftpdwin UPGRADE

Affected: <= 0.4.2

Fixed in: newer than 0.4.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy tftp-server-tftpdwin || rpm -q tftp-server-tftpdwin || tftp-server-tftpdwin --version

2. UPGRADE to newer than 0.4.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade tftp-server-tftpdwin

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade tftp-server-tftpdwin

Note

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

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: ProSysInfo TFTP server TFTPDWIN 0.4.2 - 'Filename' Remote Buffer Overflow (Metasploit)
Exploit-DB: ProSysInfo TFTP Server TFTPDWIN 0.4.2 - Remote Buffer Overflow (1)
Exploit-DB: ProSysInfo TFTP server TFTPDWIN 0.4.2 - Universal Remote Buffer Overflow
Metasploit: TFTPDWIN v0.4.2 Long Filename Buffer Overflow

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-2006-4948?

tftp server tftpdwin: upgrade to newer than 0.4.2. Exact commands for each OS are on this page.

Is CVE-2006-4948 being exploited?

CVE-2006-4948 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-2006-4948 affect?

CVE-2006-4948 affects tftp server tftpdwin. Severity is high (CVSS 7.5). Stack-based buffer overflow in tftpd.exe in ProSysInfo TFTP Server TFTPDWIN 0.4.2 and earlier allows remote attackers to execute arbitrary code or cause a denial of service via a long file name. NOTE: the provenance of this information is u

How urgent is CVE-2006-4948?

Priority 56/100. High severity; EPSS top 1%: very likely to be exploited; Public exploit reference

Related CVEs

CVE-2007-2639 HIGH 10.0 DOWNGRADE Directory traversal vulnerability in TFTPdWin 0.4.2 allows remote attackers to read or modify arbitrary files
CVE-2007-1404 HIGH 7.3 DOWNGRADE tftpd.exe in ProSysInfo TFTP Server TFTPDWIN 0.4.2 allows remote attackers to cause a denial of service via a

References

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