CVE-2011-4722: Directory traversal vulnerability in the TFTP Server 1.0.0.24 in Ipswitch WhatsUp Gold allows remote attackers

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HIGH 7.8DOWNGRADE

CVE-2011-4722 is a high-severity flaw (CVSS 7.8) affecting tftp server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Directory traversal vulnerability in the TFTP Server 1.0.0.24 in Ipswitch WhatsUp Gold allows remote attackers to read arbitrary files via a .. (dot dot) in the Filename field of an RRQ operation.

Why this priority

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

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

Risk facts

CVSS score	7.8 (High)
EPSS exploit chance	58.2% (top 1%)
CISA exploited list	No
Weakness	CWE-22
Published	2014-12-28
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: ipswitch

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

Am I affected?

Timeline

2014-12-28 02:59 UTCPublished CVE record published
2026-06-16 23:35 UTCUpdated Record last modified

ipswitch tftp server DOWNGRADE

Affected: 1.0.0.24

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0.0.24

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.0.0.24 (Debian / Ubuntu)

apt-cache madison tftp-server sudo apt install tftp-server=<VERSION_BEFORE_1.0.0.24> sudo apt-mark hold tftp-server

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

dnf --showduplicates list tftp-server sudo dnf downgrade tftp-server-<VERSION_BEFORE_1.0.0.24> sudo dnf versionlock add tftp-server

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.

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: Ipswitch TFTP Server 1.0.0.24 - Directory Traversal
Metasploit: IpSwitch WhatsUp Gold TFTP Directory Traversal

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-2011-4722?

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

Is CVE-2011-4722 being exploited?

CVE-2011-4722 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-2011-4722 affect?

CVE-2011-4722 affects tftp server. Severity is high (CVSS 7.8). Directory traversal vulnerability in the TFTP Server 1.0.0.24 in Ipswitch WhatsUp Gold allows remote attackers to read arbitrary files via a .. (dot dot) in the Filename field of an RRQ operation.

How urgent is CVE-2011-4722?

Priority 57/100. High severity; EPSS top 1%: very likely to be exploited; Public exploit reference

Related CVEs

CVE-2023-29930 HIGH 8.8 MITIGATE An issue was found in Genesys CIC Polycom phone provisioning TFTP Server all version allows a remote attacker
CVE-2010-2310 MEDIUM 5.0 DOWNGRADE SolarWinds TFTP Server 10.4.0.13 allows remote attackers to cause a denial of service (crash) via a long write
CVE-2010-2115 MEDIUM 5.0 DOWNGRADE SolarWinds TFTP Server 10.4.0.10 allows remote attackers to cause a denial of service (no new connections) via
CVE-2010-1174 MEDIUM 5.0 DOWNGRADE Cisco TFTP Server 1.1 allows remote attackers to cause a denial of service (daemon crash) via a crafted (1) re
CVE-2009-3115 MEDIUM 5.0 UPGRADE SolarWinds TFTP Server 9.2.0.111 and earlier allows remote attackers to cause a denial of service (service sto

References

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