CVE-2016-2056
UnknownEPSS 54.51%
Last modified
CVE-2016-2056 is a vulnerability of currently unknown severity. xymond in Xymon 4.1.x, 4.2.x, and 4.3.x before 4.3.25 allow remote authenticated users to execute arbitrary commands via shell metacharacters in the adduser_name argument in (1) web/useradm.c or (2) web/chpasswd.c.. EPSS estimates a 54.51% chance of exploitation in the next 30 days.
Description
xymond in Xymon 4.1.x, 4.2.x, and 4.3.x before 4.3.25 allow remote authenticated users to execute arbitrary commands via shell metacharacters in the adduser_name argument in (1) web/useradm.c or (2) web/chpasswd.c.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Xymon | Xymon | 4.1.0 | — |
| Xymon | Xymon | 4.1.1 | — |
| Xymon | Xymon | 4.1.2 | — |
| Xymon | Xymon | 4.2 | Alfa |
| Xymon | Xymon | 4.2.0 | — |
| Xymon | Xymon | 4.2.2 | — |
| Xymon | Xymon | 4.2.3 | — |
| Xymon | Xymon | 4.3.0 | — |
| Xymon | Xymon | 4.3.1 | — |
| Xymon | Xymon | 4.3.2 | — |
| Xymon | Xymon | 4.3.3 | — |
| Xymon | Xymon | 4.3.4 | — |
| Xymon | Xymon | 4.3.5 | — |
| Xymon | Xymon | 4.3.6 | — |
| Xymon | Xymon | 4.3.7 | — |
| Xymon | Xymon | 4.3.8 | — |
| Xymon | Xymon | 4.3.9 | — |
| Xymon | Xymon | 4.3.10 | — |
| Xymon | Xymon | 4.3.11 | — |
| Xymon | Xymon | 4.3.12 | — |
| Xymon | Xymon | 4.3.13 | — |
| Xymon | Xymon | 4.3.14 | — |
| Xymon | Xymon | 4.3.15 | — |
| Xymon | Xymon | 4.3.16 | — |
| Xymon | Xymon | 4.3.17 | — |
| Xymon | Xymon | 4.3.18 | — |
| Xymon | Xymon | 4.3.19 | — |
| Xymon | Xymon | 4.3.20 | — |
| Xymon | Xymon | 4.3.21 | — |
| Xymon | Xymon | 4.3.22 | — |
| Xymon | Xymon | 4.3.23 | — |
| Xymon | Xymon | 4.3.24 | — |
| Debian | Debian Linux | 8.0 | — |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2016-2056?
xymond in Xymon 4.1.x, 4.2.x, and 4.3.x before 4.3.25 allow remote authenticated users to execute arbitrary commands via shell metacharacters in the adduser_name argument in (1) web/useradm.c or (2) web/chpasswd.c.
How severe is CVE-2016-2056?
Severity scoring for CVE-2016-2056 is pending analysis. The EPSS model estimates a 54.51% probability of exploitation in the next 30 days.
How do I fix CVE-2016-2056?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
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.
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Are you affected by CVE-2016-2056?
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