CVE-2016-6244: openbsd Improper Input Validation
CVSS: 7.8v2.0HighModified
Published 07-03-2017Last modified 06-08-2024
Vulnerability summary
CVE-2016-6244 is a high (CVSS 7.8) Improper Input Validation vulnerability in openbsd. EPSS estimates a 1.74% chance of exploitation in the next 30 days, higher than 77.4% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
7.8/10
010
High · v2.0 (NVD)EPSS score
1.74%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Timeline
- 07-03-2017PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
2 scores · 1 source · 2 versionsHigh 7.5Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesSingle source
High 7.8Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:N/A:CSourcesSingle source
EPSS trend
Probability
1.74%
Chance of exploitation in the next 30 days
Percentile
77%
Versus all other CVEs
30-day change
0.00 pp
From 1.74% on 20-09-2026
20-09-202620-10-2026
EPSS score1.74%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (openwall.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Openbsd1 product
- openbsdEOL5.9
1 vendor · 1 product
References
2 links- www.openwall.com/lists/oss-security/2016/07/17/7Mailing ListX Refsource MLISTExploitThird Party Advisory