CVE-2016-4953

EPSS 13.62% · P94 Updated Feb 21, 2026

Get alerts for future matching vulnerabilitiesLog in to subscribe

I. Basic Information for CVE-2016-4953

Vulnerability Information

Have questions about the vulnerability? See if Shenlong's analysis helps!

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title

N/A

Source: NVD (National Vulnerability Database)

Vulnerability Description

ntpd in NTP 4.x before 4.2.8p8 allows remote attackers to cause a denial of service (ephemeral-association demobilization) by sending a spoofed crypto-NAK packet with incorrect authentication data at a certain time.

Source: NVD (National Vulnerability Database)

CVSS Information

N/A

Source: NVD (National Vulnerability Database)

Vulnerability Type

N/A

Source: NVD (National Vulnerability Database)

Vulnerability Title

NTP ntpd 拒绝服务漏洞

Source: CNNVD (China National Vulnerability Database)

Vulnerability Description

ntpd（Network Time Protocol daemon）是一个操作系统守护进程，它使用网络时间协议（NTP）与时间服务器的系统时间保持同步。 NTP 4.2.8p8之前4.x版本的ntpd中存在安全漏洞。远程攻击者可通过在特定的时间发送带有不正确的身份验证数据的伪造的NTP数据包利用该漏洞造成拒绝服务（ephemeral-association恢复）。

Source: CNNVD (China National Vulnerability Database)

CVSS Information

N/A

Source: CNNVD (China National Vulnerability Database)

Vulnerability Type

N/A

Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
-	n/a	n/a	-

II. Public POCs for CVE-2016-4953

#	POC Description	Source Link	Shenlong Link

AI-Generated POCPremium

No public POC found.

III. Intelligence Information for CVE-2016-4953

请登录查看更多情报信息。

http://packetstormsecurity.com/files/137322/FreeBSD-Security-Advisory-FreeBSD-SA-16-24.ntp.htmlx_refsource_MISC
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03757en_usx_refsource_CONFIRM
https://us-cert.cisa.gov/ics/advisories/icsa-21-103-11x_refsource_CONFIRM
SSA-497656 V1.0: Multiple NTP Vulnerabilities in TIM 4R-IE Devicesx_refsource_CONFIRM
http://bugs.ntp.org/3045x_refsource_CONFIRM
http://packetstormsecurity.com/files/137321/Slackware-Security-Advisory-ntp-Updates.htmlx_refsource_MISC
https://us-cert.cisa.gov/ics/advisories/icsa-21-159-11x_refsource_MISC
SSA-211752 V1.1 (Last Update: 2022-02-08): Multiple NTP-Client Related Vulnerabilities in SIMATIC CP 443-1 OPC UAx_refsource_CONFIRM
http://support.ntp.org/bin/view/Main/NtpBug3045x_refsource_CONFIRM
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.htmlx_refsource_CONFIRM
http://www.securityfocus.com/bid/91010vdb-entryx_refsource_BID
http://www.securitytracker.com/id/1036037vdb-entryx_refsource_SECTRACK
https://www.kb.cert.org/vuls/id/321640third-party-advisoryx_refsource_CERT-VN
http://www.kb.cert.org/vuls/id/321640third-party-advisoryx_refsource_CERT-VN
https://security.gentoo.org/glsa/201607-15vendor-advisoryx_refsource_GENTOO
https://security.FreeBSD.org/advisories/FreeBSD-SA-16:24.ntp.ascvendor-advisoryx_refsource_FREEBSD
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00026.htmlvendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00028.htmlvendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00042.htmlvendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00018.htmlvendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00024.htmlvendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00020.htmlvendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00040.htmlvendor-advisoryx_refsource_SUSE
http://www.securityfocus.com/archive/1/archive/1/538599/100/0/threadedmailing-listx_refsource_BUGTRAQ
http://www.securityfocus.com/archive/1/538599/100/0/threadedmailing-listx_refsource_BUGTRAQ
http://www.securityfocus.com/archive/1/archive/1/538600/100/0/threadedmailing-listx_refsource_BUGTRAQ
http://www.securityfocus.com/archive/1/538600/100/0/threadedmailing-listx_refsource_BUGTRAQ
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160603-ntpdvendor-advisoryx_refsource_CISCO
http://www.securityfocus.com/archive/1/archive/1/540683/100/0/threadedmailing-listx_refsource_BUGTRAQ
http://www.securityfocus.com/archive/1/540683/100/0/threadedmailing-listx_refsource_BUGTRAQ
https://nvd.nist.gov/vuln/detail/CVE-2016-4953

Same Patch Batch · n/a · 2016-07-05 · 8 CVEs total

CVE-2016-4954		NTP ntpd 拒绝服务漏洞
CVE-2016-4955		NTP ntpd 拒绝服务漏洞
CVE-2016-4956		NTP ntpd 拒绝服务漏洞
CVE-2016-4957		NTP.org ntpd 拒绝服务漏洞
CVE-2016-5097		phpMyAdmin 安全漏洞
CVE-2016-5098		phpMyAdmin 目录遍历漏洞
CVE-2016-5099		phpMyAdmin 跨站脚本漏洞

IV. Related Vulnerabilities

Same product: n/a

Same vendor: n/a

V. Comments for CVE-2016-4953

No comments yet

Goal Reached Thanks to every supporter — we hit 100%!

CVE-2016-4953

I. Basic Information for CVE-2016-4953

Vulnerability Information

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Affected Products

II. Public POCs for CVE-2016-4953

III. Intelligence Information for CVE-2016-4953

Same Patch Batch · n/a · 2016-07-05 · 8 CVEs total

IV. Related Vulnerabilities

V. Comments for CVE-2016-4953

Leave a comment