CVE-2020-20249
MEDIUMCVSS 6.5/10EPSS 1.75%
Last modified
CVE-2020-20249 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Mikrotik RouterOs before stable 6.47 suffers from a memory corruption vulnerability in the resolver process. By sending a crafted packet, an authenticated remote attacker can cause a Denial of Service.. EPSS estimates a 1.75% chance of exploitation in the next 30 days.
Description
Mikrotik RouterOs before stable 6.47 suffers from a memory corruption vulnerability in the resolver process. By sending a crafted packet, an authenticated remote attacker can cause a Denial of Service.
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 |
|---|---|---|
| Mikrotik | Routeros | < 6.47 |
References
- https://github.com/cq674350529/pocs_slides/blob/master/advisory/MikroTik/CVE-2020-20249/README.mdExploit, Third Party Advisory
- https://github.com/cq674350529/pocs_slides/blob/master/advisory/MikroTik/CVE-2020-20249/README.mdExploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-20249?
Mikrotik RouterOs before stable 6.47 suffers from a memory corruption vulnerability in the resolver process. By sending a crafted packet, an authenticated remote attacker can cause a Denial of Service.
How severe is CVE-2020-20249?
CVE-2020-20249 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.75% probability of exploitation in the next 30 days.
How do I fix CVE-2020-20249?
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.
Are you affected by CVE-2020-20249?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST