CVE-2020-5721
CVE-2020-5721 is a medium-severity vulnerability in Mikrotik Winbox with a CVSS 3.x base score of 5.5. 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-522.
Key facts
- Severity: Medium (CVSS 3.x base score 5.5)
- CVSS v2: 2.1
- EPSS exploit prediction: 0% (29th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-522
- Affected product: Mikrotik Winbox
- Published:
- Last modified:
Description
MikroTik WinBox 3.22 and below stores the user's cleartext password in the settings.cfg.viw configuration file when the Keep Password field is set and no Master Password is set. Keep Password is set by default and, by default Master Password is not set. An attacker with access to the configuration file can extract a username and password to gain access to the router.
Frequently asked questions
- What is CVE-2020-5721?
- MikroTik WinBox 3.22 and below stores the user's cleartext password in the settings.cfg.viw configuration file when the Keep Password field is set and no Master Password is set. Keep Password is set by default and, by default Master Password is not set. An attacker with access to the configuration file can extract a username and password to gain access to the router.
- How severe is CVE-2020-5721?
- CVE-2020-5721 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
- Is CVE-2020-5721 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-5721?
- CVE-2020-5721 affects Mikrotik Winbox. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-5721?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2020-5721 published?
- CVE-2020-5721 was published on 2020-04-15 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:mikrotik:winbox:*:*:*:*:*:*:*:*
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