CVE-2016-5180

highpriority · attend · 52EPSS 0.086 · 95 %ileexploit · PoCDEEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

3 exploits · PoC

Likely / severe?

8.58% (95th) EPSS

CVSS 7.5 · high

Is it mine?

44 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-27

Heap-based buffer overflow in the ares_create_query function in c-ares 1.x before 1.12.0 allows remote attackers to cause a denial of service (out-of-bounds write) or possibly execute arbitrary code via a hostname with an escaped trailing dot.

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–9.8

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 6.4

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.19.3criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-787USprimary

exploits (3)

Public proof-of-concept and weaponised exploit code.

pouriam23/CVE-2016-5180pouriam23/CVE-2016-5180PoC · poc_in_github
pouriam23/CVE-2016-5180-docker-pouriam23/CVE-2016-5180-docker-PoC · poc_in_github
pouriam23/final-CVE-2016-5180pouriam23/final-CVE-2016-5180PoC · poc_in_github

affected products (44)

Products and version ranges known to be affected.

Dell Secure Connect Gateway <5.36.00.16all versionscert_bundDE
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
Red Hat Enterprise Linux 6all versionscert_bundDEcpe:/o:redhat:enterprise_linux:6
Red Hat Enterprise Linux 7all versionscert_bundDEcpe:/o:redhat:enterprise_linux:7
Red Hat Enterprise Linux 7.3all versionscert_bundDEcpe:/o:redhat:enterprise_linux:7.3
Red Hat Enterprise Linux Server 7.1all versionscert_bundDEcpe:/o:redhat:enterprise_linux:7.1
Red Hat Enterprise Linux Server EUS 6.7all versionscert_bundDEcpe:/o:redhat:enterprise_linux:6.7
Red Hat Enterprise Linux Server EUS v.7.2all versionscert_bundDEcpe:/o:redhat:enterprise_linux:7.2
Red Hat Enterprise Linux Workstation 6all versionscert_bundDEcpe:/o:redhat:enterprise_linux_workstation:6
Red Hat Enterprise Linux Workstation v.7all versionscert_bundDEcpe:/o:redhat:enterprise_linux_workstation:7
Dell Secure Connect Gateway< 5.36.00.16cert_bundDE
n/a n/a≤ n/aenisa_euvdEU
c-ares c-ares= 1.0.0nvdUScpe:2.3:a:c-ares:c-ares:*:*:*:*:*:*:*:*
c-ares c-ares= 1.1.0nvdUScpe:2.3:a:c-ares:c-ares:*:*:*:*:*:*:*:*
c-ares c-ares= 1.10.0nvdUScpe:2.3:a:c-ares:c-ares:*:*:*:*:*:*:*:*
c-ares c-ares= 1.2.0nvdUScpe:2.3:a:c-ares:c-ares:*:*:*:*:*:*:*:*
c-ares c-ares= 1.2.1nvdUScpe:2.3:a:c-ares:c-ares:*:*:*:*:*:*:*:*
c-ares c-ares= 1.3.0nvdUScpe:2.3:a:c-ares:c-ares:*:*:*:*:*:*:*:*
c-ares c-ares= 1.3.1nvdUScpe:2.3:a:c-ares:c-ares:*:*:*:*:*:*:*:*
c-ares c-ares= 1.3.2nvdUScpe:2.3:a:c-ares:c-ares:*:*:*:*:*:*:*:*

showing 20 of 44

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-1614Tenable Security Nessus Network Monitor: Mehrere SchwachstellenDeutsch2023-06-29csaf · cert_bundDE
Ein entfernter, anonymer, authentisierter oder lokaler Angreifer kann mehrere Schwachstellen in Tenable Security Nessus Network Monitor ausnutzen, um beliebigen Code auszuführen, vertrauliche Informationen offenzulegen, einen Denial-of-Service-Zustand auszulösen und Daten zu manipulieren.
WID-SEC-W-2026-3114Red Hat Enterprise Linux Server: Mehrere SchwachstellenDeutsch2017-01-02csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Red Hat Enterprise Linux Server und Red Hat Enterprise Linux Workstation ausnutzen, um beliebigen Programmcode mit den Rechten des Dienstes auszuführen, einen Denial of Service Angriff durchzuführen, Sicherheitsvorkehrungen zu umgehen oder falsche Informationen darzustellen.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd NVD CVE.org MITRE

published 2016-10-03modified 2026-06-17

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+16119 more

references (28)

External citations — patches, advisories, analysis.

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