A directory traversal vulnerability in the web management interface of Zyxel ATP series firmware versions V5.00 through V5.38, USG FLEX seri
Affects Zyxel ZLD firewall firmware 5.00 through 5.38 on ATP, USG FLEX, USG FLEX 50(W) and USG20(W)-VPN series via the web management interface. Fixed in firmware 5.39.
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Listed in CISA KEV
- How many real-world setups can hit the bug, from the vendor's advisory and CISA data. It does not know your setup.What do these mean? →
- Actively exploited
- Fix
- Fixed in 5.39
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
This vulnerability affects Zyxel ATP, USG FLEX, and USG20(W)-VPN series firmware, specifically the web management interface of these network security devices. An attacker could exploit it to download or upload files on the device by sending a specially crafted URL.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
A directory traversal vulnerability in the web management interface of Zyxel ATP series firmware versions V5.00 through V5.38, USG FLEX series firmware versions V5.00 through V5.38, USG FLEX 50(W) series firmware versions V5.10 through V5.38, and USG20(W)-VPN series firmware versions V5.10 through V5.38 could allow an attacker to download or upload files via a crafted URL.
Timeline
- CVE published
- Added to CISA KEV
CISA has evidence of exploitation in the wild
- CISA remediation deadline
Due date for US federal agencies to patch
- Record last updated
Affected versions
- Zyxel ATP series firmware
versions V5.00 through V5.38
- Zyxel USG FLEX series firmware
versions V5.00 through V5.38
- Zyxel USG FLEX 50(W) series firmware
versions V5.10 through V5.38
- Zyxel USG20(W)-VPN series firmware
versions V5.10 through V5.38
References 1
Questions about CVE-2024-11667
What does this mean?
A directory traversal flaw in the web management interface lets a crafted URL download or upload files on the device.Source: zyxel.com
Am I affected, and how do I check?
Zyxel ZLD firewall firmware versions 5.00 through 5.38 on the ATP, USG FLEX, USG FLEX 50(W) and USG20(W)-VPN series. Compare the firmware version shown on the device against that range.Source: zyxel.com
What should I do about it?
Upgrade to firmware version 5.39 or later, released September 3, 2024. Until the firmware is patched, temporarily disable remote access to the device.Source: zyxel.com
Is it being exploited?
Yes. CISA added it to its Known Exploited Vulnerabilities catalog on 2024-12-03, which means it has evidence of attacks. No public exploit code is tracked.Source: cisa.gov, cve.now feed data