CVE-2020-6072
CVE-2020-6072 is a critical-severity vulnerability in Videolabs Libmicrodns with a CVSS 3.x base score of 9.8. 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-415.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- CVSS v2: 7.5
- EPSS exploit prediction: 4% (88th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-415
- Affected product: Videolabs Libmicrodns
- Published:
- Last modified:
Description
An exploitable code execution vulnerability exists in the label-parsing functionality of Videolabs libmicrodns 0.1.0. When parsing compressed labels in mDNS messages, the rr_decode function's return value is not checked, leading to a double free that could be exploited to execute arbitrary code. An attacker can send an mDNS message to trigger this vulnerability.
Frequently asked questions
- What is CVE-2020-6072?
- An exploitable code execution vulnerability exists in the label-parsing functionality of Videolabs libmicrodns 0.1.0. When parsing compressed labels in mDNS messages, the rr_decode function's return value is not checked, leading to a double free that could be exploited to execute arbitrary code. An attacker can send an mDNS message to trigger this vulnerability.
- How severe is CVE-2020-6072?
- CVE-2020-6072 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2020-6072 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-6072?
- CVE-2020-6072 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-2020-6072?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2020-6072 published?
- CVE-2020-6072 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-2020-0995
- 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-2020-6080 — 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-2020-6077 — 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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