CVE-2016-8860
HIGHEPSS 78th pctlDescription
Tor before 0.2.8.9 and 0.2.9.x before 0.2.9.4-alpha had internal functions that were entitled to expect that buf_t data had NUL termination, but the implementation of or/buffers.c did not ensure that NUL termination was present, which allows remote attackers to cause a denial of service (client, hidden service, relay, or authority crash) via crafted data.
How to fix
Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploit Intelligence
Elevated risk: more likely to be exploited than 78% of all known CVEs.
References
Related Vulnerabilities
Other CWE-119 (Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2023-4966 | Critical | 9.4 | 100% | KEV + Ransom | Fix |
| CVE-2017-11882 | High | 7.8 | 100% | KEV + Ransom | - |
| CVE-2020-0796 | Critical | 10.0 | 100% | KEV + Ransom | - |
| CVE-2008-4250 | Critical | 9.8 | 99% | KEV | - |
| CVE-2017-15944 | Critical | 9.8 | 98% | KEV | Fix |
| CVE-2015-0014 | High | 10.0 | 97% | - | - |
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Markdown
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Start freeThis product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.