CVE-2021-33903
Last modified
CVE-2021-33903 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. In LCOS 10.40 to 10.42.0473-RU3 with SNMPv3 enabled on LANCOM devices, changing the password of the root user via the CLI does not change the password of the root user for SNMPv3 access. (However, changing the password of the root user via LANconfig does change the password of the root user for SNMPv3 access.). EPSS estimates a 1.07% chance of exploitation in the next 30 days.
Description
In LCOS 10.40 to 10.42.0473-RU3 with SNMPv3 enabled on LANCOM devices, changing the password of the root user via the CLI does not change the password of the root user for SNMPv3 access. (However, changing the password of the root user via LANconfig does change the password of the root user for SNMPv3 access.)
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Lancom-Systems | Lcos | >= 10.40, < 10.42.0473 |
| Lancom-Systems | Lcos | 10.42.0473 |
References
- https://www.nmedv.de/wp-content/uploads/2021/10/NME-2021-001.txtThird Party Advisory
- https://www.nmedv.de/wp-content/uploads/2021/10/NME-2021-001.txtThird Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-33903?
How severe is CVE-2021-33903?
How do I fix CVE-2021-33903?
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 2021
- CVE-2021-33894In Progress MOVEit Transfer before 2019.0.6 (11.0.6), 2019.1…8.8
- CVE-2021-33895ETINET BACKBOX E4.09 and H4.09 mismanages password access co…8.1
- CVE-2021-33896Dino before 0.1.2 and 0.2.x before 0.2.1 allows Directory Tr…5.3
- CVE-2021-33897A buffer overflow in Synthesia before 10.7.5567, when a non-…5.5
- CVE-2021-33898In Invoice Ninja before 4.4.0, there is an unsafe call to un…8.1
- CVE-2021-33900While investigating DIRSTUDIO-1219 it was noticed that confi…7.5
- CVE-2021-33904In Accela Civic Platform through 21.1, the security/hostSign…6.1
- CVE-2021-33907The Zoom Client for Meetings for Windows in all versions bef…9.8
- CVE-2021-33909fs/seq_file.c in the Linux kernel 3.16 through 5.13.x before…7.8
- CVE-2021-3391MobileIron Mobile@Work through 2021-03-22 allows attackers t…5.3
- CVE-2021-33910basic/unit-name.c in systemd prior to 246.15, 247.8, 248.5, …5.5
- CVE-2021-33911Zoho ManageEngine ADManager Plus before 7110 allows remote c…9.8
Are you affected by CVE-2021-33903?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST