CVE-2019-5039
CVE-2019-5039 is a high-severity vulnerability in Openweave Openweave-core with a CVSS 3.x base score of 8.8. 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-787.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- CVSS v2: 6.8
- EPSS exploit prediction: 2% (73rd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-787
- Affected product: Openweave Openweave-core
- Published:
- Last modified:
Description
An exploitable command execution vulnerability exists in the ASN1 certificate writing functionality of Openweave-core version 4.0.2. A specially crafted weave certificate can trigger a heap-based buffer overflow, resulting in code execution. An attacker can craft a weave certificate to trigger this vulnerability.
Frequently asked questions
- What is CVE-2019-5039?
- An exploitable command execution vulnerability exists in the ASN1 certificate writing functionality of Openweave-core version 4.0.2. A specially crafted weave certificate can trigger a heap-based buffer overflow, resulting in code execution. An attacker can craft a weave certificate to trigger this vulnerability.
- How severe is CVE-2019-5039?
- CVE-2019-5039 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2019-5039 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2019-5039?
- CVE-2019-5039 affects Openweave Openweave-core. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2019-5039?
- 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-2019-5039 published?
- CVE-2019-5039 was published on 2019-08-20 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:openweave:openweave-core:4.0.2:*:*:*:*:*:*:*
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