Is CVE-2020-20250 in the CISA KEV catalog?

No. CVE-2020-20250 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-20250?

CVE-2020-20250 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2020-20250?

CVE-2020-20250 has an EPSS score of 1.71% (75th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-20250?

Upgrade routeros to 6.47 or later.

CVE & CISA-KEV Catalog

CVE-2020-20250

MEDIUMEPSS 75th pctl

6.5

CVSS v3

NVD

Description

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.

CWE-476NULL Pointer Dereference CWE-787Out-of-bounds Write

How to fix

Remediation Available

routerosNVD

Affected:< 6.47Fixed in:6.47CVE-2020-20250derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

1.71%probability of exploitation in 30 days

75thpercentile

Elevated risk: more likely to be exploited than 75% of all known CVEs.

References

Exploit1

github.com

Vendor Advisory1

mikrotik.com

Related Vulnerabilities

Other CWE-476 (NULL Pointer Dereference) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-21758	High	7.5	92%	-	Fix
CVE-2023-21547	High	7.5	88%	-	Fix
CVE-2014-3470	Medium	4.3	86%	-	Fix
CVE-2021-44224	High	8.2	82%	-	Fix
CVE-2016-0742	High	7.5	82%	-	Fix
CVE-2009-1386	Medium	5.0	80%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.