CVE-2026-22316
MEDIUMCVSS 6.5/10EPSS 0.38%
Last modified
CVE-2026-22316 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. A remote attacker with user privileges for the webUI can use the setting of the TFTP Filename with a POST Request to trigger a stack-based Buffer Overflow, resulting in a DoS attack.. EPSS estimates a 0.38% chance of exploitation in the next 30 days.
Description
A remote attacker with user privileges for the webUI can use the setting of the TFTP Filename with a POST Request to trigger a stack-based Buffer Overflow, resulting in a DoS attack.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Phoenix Contact | FL SWITCH 2005 | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2008 | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2016 | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2105 | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2108 | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2116 | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2204-2TC-2SFX | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2205 | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2206-2FX | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2206-2FX SM | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2206-2FX SM ST | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2206-2FX ST | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2206-2SFX | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2206-2SFX PN | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2206C-2FX | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2207-FX | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2207-FX SM | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2208 | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2208 PN | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2208C | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2212-2TC-2SFX | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2214-2FX | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2214-2FX SM | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2214-2SFX | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2214-2SFX PN | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2216 | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2216 PN | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2304-2GC-2SFP | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2306-2SFP | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2306-2SFP PN | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2308 | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2308 PN | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2312-2GC-2SFP | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2314-2SFP | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2314-2SFP PN | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2316 | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2316 PN | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2404-2TC-2SFX | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2406-2SFX | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2406-2SFX PN | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2408 | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2408 PN | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2412-2TC-2SFX | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2414-2SFX | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2414-2SFX PN | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2416 | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2416 PN | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2504-2GC-2SFP | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2506-2SFP | >= 0.0.0, < 3.53 |
| Phoenix Contact | FL SWITCH 2506-2SFP PN | >= 0.0.0, < 3.53 |
Showing 50 of 77 affected configurations. See the CNA advisory for the full list.
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
What is CVE-2026-22316?
A remote attacker with user privileges for the webUI can use the setting of the TFTP Filename with a POST Request to trigger a stack-based Buffer Overflow, resulting in a DoS attack.
How severe is CVE-2026-22316?
CVE-2026-22316 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.38% probability of exploitation in the next 30 days.
How do I fix CVE-2026-22316?
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-2026-22316?
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