CVE-2020-6077
CVE-2020-6077 is a high-severity vulnerability in Videolabs Libmicrodns with a CVSS 3.x base score of 7.5. 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-125.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- CVSS v2: 5.0
- EPSS exploit prediction: 2% (82nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-125
- Affected product: Videolabs Libmicrodns
- Published:
- Last modified:
Description
An exploitable denial-of-service vulnerability exists in the message-parsing functionality of Videolabs libmicrodns 0.1.0. When parsing mDNS messages, the implementation does not properly keep track of the available data in the message, possibly leading to an out-of-bounds read that would result in a denial of service. An attacker can send an mDNS message to trigger this vulnerability.
Frequently asked questions
- What is CVE-2020-6077?
- An exploitable denial-of-service vulnerability exists in the message-parsing functionality of Videolabs libmicrodns 0.1.0. When parsing mDNS messages, the implementation does not properly keep track of the available data in the message, possibly leading to an out-of-bounds read that would result in a denial of service. An attacker can send an mDNS message to trigger this vulnerability.
- How severe is CVE-2020-6077?
- CVE-2020-6077 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2020-6077 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-6077?
- CVE-2020-6077 primarily affects Videolabs Libmicrodns. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2020-6077?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2020-6077 published?
- CVE-2020-6077 was published on 2020-03-24 and last updated on 2026-06-17.
References
- https://security.gentoo.org/glsa/202005-10
- https://talosintelligence.com/vulnerability_reports/TALOS-2020-1000
- https://www.debian.org/security/2020/dsa-4671
Affected products (2)
- cpe:2.3:a:videolabs:libmicrodns:0.1.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
More vulnerabilities in Videolabs Libmicrodns
- CVE-2020-6072 — Critical (CVSS 9.8): An exploitable code execution vulnerability exists in the label-parsing functionality of Videolabs libmicrodns 0.1.0.…
- CVE-2020-6080 — High (CVSS 7.5): An exploitable denial-of-service vulnerability exists in the resource allocation handling of Videolabs libmicrodns…
- CVE-2020-6079 — High (CVSS 7.5): An exploitable denial-of-service vulnerability exists in the resource allocation handling of Videolabs libmicrodns…
- CVE-2020-6078 — High (CVSS 7.5): An exploitable denial-of-service vulnerability exists in the message-parsing functionality of Videolabs libmicrodns…
- CVE-2020-6073 — High (CVSS 7.5): An exploitable denial-of-service vulnerability exists in the TXT record-parsing functionality of Videolabs libmicrodns…
- CVE-2020-6071 — High (CVSS 7.5): An exploitable denial-of-service vulnerability exists in the resource record-parsing functionality of Videolabs…
All CVEs affecting Videolabs Libmicrodns →
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