CVE-2016-6301

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

8.96% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 95.0% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2016-12-09 20:00Z9 YR AGO

Last updated

2025-12-04 16:45Z10 MO AGO

Reserved

2016-07-26

Assigning CNA

redhat

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses

• CWE-835Loop with Unreachable Exit Condition ('Infinite Loop')Base
• CWE-399

Data version

5.2

Document digest

e6bddf245efe41c8f3cee6d1bee3274a77580790234e231db57717f8c4f78bf6

• www.openwall.com[oss-security] 20160803 CVE-2016-6301: busybox: NTP server denial of service flawhttp://www.openwall.com/lists/oss-security/2016/08/03/7mailing-listx_refsource_MLIST
• bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1363710x_refsource_CONFIRM
• www.securityfocus.com92277http://www.securityfocus.com/bid/92277vdb-entryx_refsource_BID
• security.gentoo.orgGLSA-201701-05https://security.gentoo.org/glsa/201701-05vendor-advisoryx_refsource_GENTOO
• git.busybox.nethttps://git.busybox.net/busybox/commit/?id=150dc7a2b483b8338a3e185c478b4b23ee884e71x_refsource_CONFIRM
• seclists.org20190612 SEC Consult SA-20190612-0 :: Multiple vulnerabilities in WAGO 852 Industrial Managed Switch Serieshttp://seclists.org/fulldisclosure/2019/Jun/18mailing-listx_refsource_FULLDISC
• seclists.org20190613 SEC Consult SA-20190612-0 :: Multiple vulnerabilities in WAGO 852 Industrial Managed Switch Serieshttps://seclists.org/bugtraq/2019/Jun/14mailing-listx_refsource_BUGTRAQ
• packetstormsecurity.comhttp://packetstormsecurity.com/files/153278/WAGO-852-Industrial-Managed-Switch-Series-Code-Execution-Hardcoded-Credentials.htmlx_refsource_MISC
• seclists.org20190904 SEC Consult SA-20190904-0 :: Multiple vulnerabilities in Cisco router series RV34X, RV26X and RV16Xhttp://seclists.org/fulldisclosure/2019/Sep/7mailing-listx_refsource_FULLDISC
• seclists.org20190904 SEC Consult SA-20190904-0 :: Multiple vulnerabilities in Cisco router series RV34X, RV26X and RV16Xhttps://seclists.org/bugtraq/2019/Sep/7mailing-listx_refsource_BUGTRAQ
• packetstormsecurity.comhttp://packetstormsecurity.com/files/154361/Cisco-Device-Hardcoded-Credentials-GNU-glibc-BusyBox.htmlx_refsource_MISC
• seclists.org20200313 SEC Consult SA-20200312-0 :: Authenticated Command Injection in Phoenix Contact TC Router & TC Cloud Clienthttp://seclists.org/fulldisclosure/2020/Mar/15mailing-listx_refsource_FULLDISC
• seclists.org20200827 SEC Consult SA-20200827-0 :: Multiple Vulnerabilities in ZTE mobile Hotspot MS910Shttp://seclists.org/fulldisclosure/2020/Aug/20mailing-listx_refsource_FULLDISC