CVE-2020-20250

Mikrotik RouterOs before stable version 6.47 suffers from a memory corruption vulnerability in the /nova/bin/lcdstat process. An authenticated remote attacker can cause a Denial of Service (NULL pointer dereference). NOTE: this is different from CVE-2020-20253 and CVE-2020-20254. All four vulnerabilities in the /nova/bin/lcdstat process are discussed in the CVE-2020-20250 github.com/cq674350529 reference.

CVSS v3.1

6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS v2.0

4.0 MEDIUMAV:N/AC:L/Au:S/C:N/I:N/A:P

EPSS

1.71% chance of exploitation in the next 30 days, 76th percentile

Published

2021-07-13

Updated

2024-08-04

Proof-of-concept exploits (1)

• cq674350529/pocs_slides/blob/master/advisory/MikroTik/CVE-2020-20250/README.md

References

• CVE Record
• NVD entry

Related

• CVE-2020-20230
• CVE-2020-20231
• CVE-2020-20248
• CVE-2020-20249
• CVE-2020-20252
• CVE-2022-45313