HOMEVULNERABILITIESCVE-2017-5645
CRITICAL

CVE-2017-5645

CWE-502Published: April 17, 2017· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

In Apache Log4j 2.x before 2.8.2, when using the TCP socket server or UDP socket server to receive serialized log events from another application, a specially crafted binary payload can be sent that, when deserialized, can execute arbitrary code.

NVD Source

Technical Analysis

CVE-2017-5645 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-502): Insecure deserialization vulnerabilities allow attackers to inject malicious objects during deserialization, potentially enabling remote 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

Apache1 product(s)
log4j
netapp6 product(s)
oncommand api servicesoncommand insightoncommand workflow automationservice level managersnapcenterstorage automation store
Oracle64 product(s)
api gatewayapplication testing suiteautovue vuelink integrationbanking platformbi publishercommunications converged application server - service controllercommunications instant messaging servercommunications interactive session recordercommunications messaging servercommunications network integritycommunications online mediation controllercommunications pricing design center+52
Red Hat8 product(s)
fuseenterprise linuxenterprise linux desktopenterprise linux serverenterprise linux server ausenterprise linux server eusenterprise linux server tusenterprise linux workstation
Source: NVD CPE · 170 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
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Official Patches & Advisories

All References (164)

Quick Facts

CVE IDCVE-2017-5645
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-502
CISA KEVNo
Affected4 vendor(s)
PublishedApr 17, 2017

Related CVEs (CWE-502)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2017-5645 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.