CVE-2016-6244
CVE-2016-6244 is a high-severity vulnerability in Openbsd 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-20.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- CVSS v2: 7.8
- EPSS exploit prediction: 2% (75th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-20
- Affected product: Openbsd
- Published:
- Last modified:
Description
The sys_thrsigdivert function in kern/kern_sig.c in the OpenBSD kernel 5.9 allows remote attackers to cause a denial of service (panic) via a negative "ts.tv_sec" value.
Frequently asked questions
- What is CVE-2016-6244?
- The sys_thrsigdivert function in kern/kern_sig.c in the OpenBSD kernel 5.9 allows remote attackers to cause a denial of service (panic) via a negative "ts.tv_sec" value.
- How severe is CVE-2016-6244?
- CVE-2016-6244 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-2016-6244 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2016-6244?
- CVE-2016-6244 affects Openbsd. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2016-6244?
- 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-2016-6244 published?
- CVE-2016-6244 was published on 2017-03-07 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:openbsd:openbsd:5.9:*:*:*:*:*:*:*
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