Known exploited vulnerability
CVE-2024-11667
The short answer
CVE-2024-11667 affects Zyxel ATP series firmware and is rated critical (CVSS 9.8). CISA added it to the Known Exploited Vulnerabilities catalog on 2024-12-03: attackers are using it, so patch it first.
What it is
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.
Weakness: CWE-22.
Severity
9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploited (CISA KEV)
Yes, since Dec 3, 2024
Federal due date Dec 24, 2024
EPSS, next 30 days
3.0%
Higher than 87% of scored CVEs
How it can be exploited
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
What CISA says to do
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Affected products
ATP series firmware, USG FLEX series firmware, USG FLEX 50(W) series firmware, USG20(W)-VPN series firmware, usg_flex_firmware, atp_firmware, usg20-vpn_firmware, usg_flex_50w_firmware. NVD's record lists the exact affected versions.
References
Questions
Is CVE-2024-11667 being exploited?
Yes. CISA added CVE-2024-11667 to its Known Exploited Vulnerabilities catalog on 2024-12-03, with a federal remediation due date of 2024-12-24. CISA lists it as used in ransomware campaigns.
How do I fix CVE-2024-11667?
CISA's required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.
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