HOME VULNERABILITIESCVE-2019-13132

CRITICAL

CVE-2019-13132

CWE-787Published: July 10, 2019· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

In ZeroMQ libzmq before 4.0.9, 4.1.x before 4.1.7, and 4.2.x before 4.3.2, a remote, unauthenticated client connecting to a libzmq application, running with a socket listening with CURVE encryption/authentication enabled, may cause a stack overflow and overwrite the stack with arbitrary data, due to a buffer overflow in the library. Users running public servers with the above configuration are highly encouraged to upgrade as soon as possible, as there are no known mitigations.

Technical Analysis

CVE-2019-13132 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.None

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Affected Vendors & Products

Canonical1 product(s)

ubuntu linux

Debian1 product(s)

debian linux

Fedora1 product(s)

fedora

zeromq1 product(s)

libzmq

Source: NVD CPE · 10 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time

Offensive Security exploit database

GitHub PoC Search

Community PoC repositories

Rapid7 / Metasploit

Metasploit module search

Security advisories & exploits

Official NIST entry

CVE Program entry

External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://www.openwall.com/lists/oss-security/2019/07/08/6

ADVISORYhttp://www.securityfocus.com/bid/109284

ADVISORYhttps://github.com/zeromq/libzmq/issues/3558

ADVISORYhttps://github.com/zeromq/libzmq/releases

ADVISORYhttps://lists.debian.org/debian-lts-announce/2019/07/msg00007.html

ADVISORYhttps://seclists.org/bugtraq/2019/Jul/13

ADVISORYhttps://security.gentoo.org/glsa/201908-17

ADVISORYhttps://usn.ubuntu.com/4050-1/

ADVISORYhttps://www.debian.org/security/2019/dsa-4477

ADVISORYhttp://www.openwall.com/lists/oss-security/2019/07/08/6

ADVISORYhttp://www.securityfocus.com/bid/109284

ADVISORYhttps://github.com/zeromq/libzmq/issues/3558

ADVISORYhttps://github.com/zeromq/libzmq/releases

ADVISORYhttps://lists.debian.org/debian-lts-announce/2019/07/msg00007.html

ADVISORYhttps://seclists.org/bugtraq/2019/Jul/13

ADVISORYhttps://security.gentoo.org/glsa/201908-17

ADVISORYhttps://usn.ubuntu.com/4050-1/

ADVISORYhttps://www.debian.org/security/2019/dsa-4477

All References (30)

→

http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00033.htmlBroken Link

→

http://www.openwall.com/lists/oss-security/2019/07/08/6Mailing List · Release Notes · Third Party Advisory

→

http://www.securityfocus.com/bid/109284Broken Link · Third Party Advisory · VDB Entry

→

https://fangpenlin.com/posts/2024/04/07/how-i-discovered-a-9-point-8-critical-security-vulnerability-in-zeromq-with-mostly-pure-luck/

→

https://github.com/zeromq/libzmq/issues/3558Third Party Advisory

→

https://github.com/zeromq/libzmq/releasesRelease Notes · Third Party Advisory

→

https://lists.debian.org/debian-lts-announce/2019/07/msg00007.htmlMailing List · Third Party Advisory

→

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AVCTNUEOFFZUNJOXFCYCF3C6Y6NDILI3/

→

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MK7SJYDJ7MMRRRPCUN3SCSE7YK6ZSHVS/

→

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T6HINI24SL7CU6XIJWUOSGTZWEFOOL7X/

→

https://news.ycombinator.com/item?id=39970716

→

https://seclists.org/bugtraq/2019/Jul/13Mailing List · Third Party Advisory

→

https://security.gentoo.org/glsa/201908-17Third Party Advisory

→

https://usn.ubuntu.com/4050-1/Third Party Advisory

→

https://www.debian.org/security/2019/dsa-4477Third Party Advisory

Quick Facts

CVE IDCVE-2019-13132

CVSS Score9.8 / 10

SeverityCRITICAL

WeaknessCWE-787

CISA KEVNo

Affected4 vendor(s)

PublishedJul 10, 2019

Related CVEs (CWE-787)

Recommended Actions

→Apply vendor patches immediately
→Monitor CVE-2019-13132 in threat intel feeds
→Review IDS/IPS signatures for exploitation attempts

Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.

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