HOMEVULNERABILITIESCVE-2017-5872
HIGH

CVE-2017-5872

CWE-20Published: March 10, 2017· Updated: Jun 17, 2026

7.5
CVSS v3.1

Official Description

The TCP/IP networking module in Unisys ClearPath MCP systems with TCP-IP-SW 57.1 before 57.152, 58.1 before 58.142, or 59.1 before 59.172, when running a TLS 1.2 service, allows remote attackers to cause a denial of service (network connectivity disruption) via a client hello with a signature_algorithms extension above those defined in RFC 5246, which triggers a full memory dump.

NVD Source

Technical Analysis

CVE-2017-5872 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 availability disruption (denial of service), with a CVSS base score of 7.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Vendors & Products

unisys1 product(s)
clearpath mcp
Source: NVD CPE · 3 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://www.securityfocus.com/bid/96782
ADVISORYhttps://public.support.unisys.com/common/public/vulnerability/NVD_Detail_Rpt.aspx?ID=42
ADVISORYhttp://www.securityfocus.com/bid/96782
ADVISORYhttps://public.support.unisys.com/common/public/vulnerability/NVD_Detail_Rpt.aspx?ID=42

All References (4)

→
http://www.securityfocus.com/bid/96782Third Party Advisory · VDB Entry
→
https://public.support.unisys.com/common/public/vulnerability/NVD_Detail_Rpt.aspx?ID=42Vendor Advisory
→
http://www.securityfocus.com/bid/96782Third Party Advisory · VDB Entry
→
https://public.support.unisys.com/common/public/vulnerability/NVD_Detail_Rpt.aspx?ID=42Vendor Advisory

Quick Facts

CVE IDCVE-2017-5872
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-20
CISA KEVNo
Affected1 vendor(s)
PublishedMar 10, 2017

Related CVEs (CWE-20)

CVE-2020-12389
10.0
CVE-2008-6826
10.0
CVE-2020-6962
10.0
CVE-2020-12388
10.0
CVE-2021-21321
10.0
CVE-2008-1331
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2017-5872 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.COM. CVE data is provided under the NVD usage policy.
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