CVE-2023-6399
Last modified
CVE-2023-6399 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. A format string vulnerability in Zyxel ATP series firmware versions from 4.32 through 5.37 Patch 1, USG FLEX series firmware versions from 4.50 through 5.37 Patch 1, USG FLEX 50(W) series firmware versions from 4.16 through 5.37 Patch 1, USG20(W)-VPN series firmware versions from 4.16 through 5.37 Patch 1, and USG FLEX H series firmware versions from 1.10 through 1.10 Patch 1 could allow an authenticated IPSec VPN user to cause DoS conditions against the “deviceid” daemon by sending a crafted hostname to an affected device if it has the “Device Insight” feature enabled.. EPSS estimates a 0.65% chance of exploitation in the next 30 days.
Description
A format string vulnerability in Zyxel ATP series firmware versions from 4.32 through 5.37 Patch 1, USG FLEX series firmware versions from 4.50 through 5.37 Patch 1, USG FLEX 50(W) series firmware versions from 4.16 through 5.37 Patch 1, USG20(W)-VPN series firmware versions from 4.16 through 5.37 Patch 1, and USG FLEX H series firmware versions from 1.10 through 1.10 Patch 1 could allow an authenticated IPSec VPN user to cause DoS conditions against the “deviceid” daemon by sending a crafted hostname to an affected device if it has the “Device Insight” feature enabled.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Zyxel | Atp100 Firmware | >= 5.10, < 5.37 |
| Zyxel | Atp100 Firmware | 5.37 |
| Zyxel | Atp100w Firmware | >= 5.10, < 5.37 |
| Zyxel | Atp100w Firmware | 5.37 |
| Zyxel | Atp200 Firmware | >= 5.10, < 5.37 |
| Zyxel | Atp200 Firmware | 5.37 |
| Zyxel | Atp500 Firmware | >= 5.10, < 5.37 |
| Zyxel | Atp500 Firmware | 5.37 |
| Zyxel | Atp700 Firmware | >= 5.10, < 5.37 |
| Zyxel | Atp700 Firmware | 5.37 |
| Zyxel | Atp800 Firmware | >= 5.10, < 5.37 |
| Zyxel | Atp800 Firmware | 5.37 |
| Zyxel | Usg Flex 100 Firmware | >= 5.10, < 5.37 |
| Zyxel | Usg Flex 100 Firmware | 5.37 |
| Zyxel | Usg Flex 100ax Firmware | >= 5.10, < 5.37 |
| Zyxel | Usg Flex 100ax Firmware | 5.37 |
| Zyxel | Usg Flex 100h Firmware | >= 5.10, < 5.37 |
| Zyxel | Usg Flex 100h Firmware | 5.37 |
| Zyxel | Usg Flex 100w Firmware | >= 5.10, < 5.37 |
| Zyxel | Usg Flex 100w Firmware | 5.37 |
| Zyxel | Usg Flex 200 Firmware | >= 5.10, < 5.37 |
| Zyxel | Usg Flex 200 Firmware | 5.37 |
| Zyxel | Usg Flex 200h Firmware | >= 5.10, < 5.37 |
| Zyxel | Usg Flex 200h Firmware | 5.37 |
| Zyxel | Usg Flex 200hp Firmware | >= 5.10, < 5.37 |
| Zyxel | Usg Flex 200hp Firmware | 5.37 |
| Zyxel | Usg Flex 500 Firmware | >= 5.10, < 5.37 |
| Zyxel | Usg Flex 500 Firmware | 5.37 |
| Zyxel | Usg Flex 500h Firmware | >= 5.10, < 5.37 |
| Zyxel | Usg Flex 500h Firmware | 5.37 |
| Zyxel | Usg Flex 700 Firmware | >= 5.10, < 5.37 |
| Zyxel | Usg Flex 700 Firmware | 5.37 |
| Zyxel | Usg Flex 700h Firmware | >= 5.10, < 5.37 |
| Zyxel | Usg Flex 700h Firmware | 5.37 |
| Zyxel | Usg Flex 50 Firmware | >= 5.10, < 5.37 |
| Zyxel | Usg Flex 50 Firmware | 5.37 |
| Zyxel | Usg Flex 50w Firmware | >= 5.10, < 5.37 |
| Zyxel | Usg Flex 50w Firmware | 5.37 |
| Zyxel | Usg20-Vpn Firmware | >= 5.10, < 5.37 |
| Zyxel | Usg20-Vpn Firmware | 5.37 |
| Zyxel | Usg20w-Vpn Firmware | >= 5.10, < 5.37 |
| Zyxel | Usg20w-Vpn Firmware | 5.37 |
| Zyxel | Uos | 1.10 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2023-6399?
How severe is CVE-2023-6399?
How do I fix CVE-2023-6399?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2023
- CVE-2023-6391The Custom User CSS WordPress plugin through 0.2 does not ha…8.8
- CVE-2023-6393A flaw was found in the Quarkus Cache Runtime. When request …5.3
- CVE-2023-6394A flaw was found in Quarkus. This issue occurs when receivin…9.1
- CVE-2023-6395The Mock software contains a vulnerability wherein an attack…9.8
- CVE-2023-6397 A null pointer dereference vulnerability in Zyxe…5.3
- CVE-2023-6398A post-authentication command injection vulnerability in the…7.2
- CVE-2023-6400Incorrect Authorization vulnerability in OpenText™ ZENworks …7.4
- CVE-2023-6401A vulnerability classified as problematic was found in NoteP…7.8
- CVE-2023-6402A vulnerability, which was classified as critical, was found…8.8
- CVE-2023-6407 A CWE-22: Improper Limitation of a Pathname to a Restricted…7.1
- CVE-2023-6408 CWE-924: Improper Enforcement of Message Integrity During T…8.1
- CVE-2023-6409 CWE-798: Use of Hard-coded Credentials vulnerability exists…7.7
Are you affected by CVE-2023-6399?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST