CVE-2020-20218
CVE-2020-20218 is a medium-severity vulnerability in Mikrotik Routeros with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.
Key facts
- Severity: Medium (CVSS 3.x base score 6.5)
- CVSS v2: 4.0
- EPSS exploit prediction: 2% (78th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-787
- Affected product: Mikrotik Routeros
- Published:
- Last modified:
Description
Mikrotik RouterOs 6.44.6 (long-term tree) suffers from a memory corruption vulnerability in the /nova/bin/traceroute process. An authenticated remote attacker can cause a Denial of Service due via the loop counter variable.
Frequently asked questions
- What is CVE-2020-20218?
- Mikrotik RouterOs 6.44.6 (long-term tree) suffers from a memory corruption vulnerability in the /nova/bin/traceroute process. An authenticated remote attacker can cause a Denial of Service due via the loop counter variable.
- How severe is CVE-2020-20218?
- CVE-2020-20218 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2020-20218 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-20218?
- CVE-2020-20218 affects Mikrotik Routeros. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-20218?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2020-20218 published?
- CVE-2020-20218 was published on 2021-05-03 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:mikrotik:routeros:6.44.6:*:*:*:ltr:*:*:*
More vulnerabilities in Mikrotik Routeros
- CVE-2017-20149 — Critical (CVSS 9.8): The Mikrotik RouterOS web server allows memory corruption in releases before Stable 6.38.5 and Long-term 6.37.5, aka…
- CVE-2022-34960 — Critical (CVSS 9.8): The container package in MikroTik RouterOS 7.4beta4 allows an attacker to create mount points pointing to symbolic…
- CVE-2018-7445 — Critical (CVSS 9.8): A buffer overflow was found in the MikroTik RouterOS SMB service when processing NetBIOS session request messages.…
- CVE-2023-30799 — Critical (CVSS 9.1): MikroTik RouterOS stable before 6.49.7 and long-term through 6.48.6 are vulnerable to a privilege escalation issue. A…
- CVE-2018-14847 — Critical (CVSS 9.1): MikroTik RouterOS through 6.42 allows unauthenticated remote attackers to read arbitrary files and remote authenticated…
- CVE-2022-45313 — High (CVSS 8.8): Mikrotik RouterOs before stable v7.5 was discovered to contain an out-of-bounds read in the hotspot process. This…
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