CVE-2020-16849
HIGHCVSS 7.5/10EPSS 1.13%
Last modified
CVE-2020-16849 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. An issue was discovered on Canon MF237w 06.07 devices. An "Improper Handling of Length Parameter Inconsistency" issue in the IPv4/ICMPv4 component, when handling a packet sent by an unauthenticated network attacker, may expose Sensitive Information.. EPSS estimates a 1.13% chance of exploitation in the next 30 days.
Description
An issue was discovered on Canon MF237w 06.07 devices. An "Improper Handling of Length Parameter Inconsistency" issue in the IPv4/ICMPv4 component, when handling a packet sent by an unauthenticated network attacker, may expose Sensitive Information.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Canon | Mf237w Firmware | 06.07 |
| Canon | Mf113w Firmware | All versions |
| Canon | Mf212w Firmware | All versions |
| Canon | Mf216n Firmware | All versions |
| Canon | Mf217w Firmware | All versions |
| Canon | Mf226dn Firmware | All versions |
| Canon | Mf229dw Firmware | All versions |
| Canon | Mf231 Firmware | All versions |
| Canon | Mf232w Firmware | All versions |
| Canon | Mf244dw Firmware | All versions |
| Canon | Mf247dw Firmware | All versions |
| Canon | Mf249dw Firmware | All versions |
| Canon | Mf264dw Firmware | All versions |
| Canon | Mf267dw Firmware | All versions |
| Canon | Mf269dw Firmware | All versions |
| Canon | Mf4570dn Firmware | All versions |
| Canon | Mf4580dn Firmware | All versions |
| Canon | Mf4780w Firmware | All versions |
| Canon | Mf4870dn Firmware | All versions |
| Canon | Mf4890dw Firmware | All versions |
| Canon | Lbp113w Firmware | All versions |
| Canon | Lbp151dw Firmware | All versions |
| Canon | Lbp162dw Firmware | All versions |
| Canon | Ir2202n Firmware | All versions |
| Canon | Ir2204n Firmware | All versions |
| Canon | Ir2204f Firmware | All versions |
| Canon | Ir2206n Firmware | All versions |
| Canon | Ir2206if Firmware | All versions |
References
- https://blog.scadafence.com/vulnerability-report-cve-2020-16849Third Party Advisory
- https://www.canon-europe.com/support/product-security/Vendor Advisory
- https://blog.scadafence.com/vulnerability-report-cve-2020-16849Third Party Advisory
- https://www.canon-europe.com/support/product-security/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-16849?
An issue was discovered on Canon MF237w 06.07 devices. An "Improper Handling of Length Parameter Inconsistency" issue in the IPv4/ICMPv4 component, when handling a packet sent by an unauthenticated network attacker, may expose Sensitive Information.
How severe is CVE-2020-16849?
CVE-2020-16849 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.13% probability of exploitation in the next 30 days.
How do I fix CVE-2020-16849?
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-2020-16849?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST