HOMEVULNERABILITIESCVE-2018-15382
HIGH

CVE-2018-15382

CWE-642Published: October 5, 2018· Updated: Jun 17, 2026

8.6
CVSS v3.1

Official Description

A vulnerability in Cisco HyperFlex Software could allow an unauthenticated, remote attacker to generate valid, signed session tokens. The vulnerability is due to a static signing key that is present in all Cisco HyperFlex systems. An attacker could exploit this vulnerability by accessing the static signing key from one HyperFlex system and using it to generate valid, signed session tokens for another HyperFlex system. A successful exploit could allow the attacker to access the HyperFlex Web UI of a system for which they are not authorized.

NVD Source

Technical Analysis

CVE-2018-15382 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 8.6.

CVSS v3.1 Vector Breakdown

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

Affected Vendors & Products

Cisco1 product(s)
hyperflex hx data platform
Source: NVD CPE · 1 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
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Official Patches & Advisories

ADVISORYhttp://www.securityfocus.com/bid/105518
ADVISORYhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181003-hyperflex-secret
ADVISORYhttp://www.securityfocus.com/bid/105518
ADVISORYhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181003-hyperflex-secret

All References (4)

→
http://www.securityfocus.com/bid/105518Third Party Advisory · VDB Entry
→
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181003-hyperflex-secretVendor Advisory
→
http://www.securityfocus.com/bid/105518Third Party Advisory · VDB Entry
→
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181003-hyperflex-secretVendor Advisory

Quick Facts

CVE IDCVE-2018-15382
CVSS Score8.6 / 10
SeverityHIGH
WeaknessCWE-642
CISA KEVNo
Affected1 vendor(s)
PublishedOct 5, 2018

Related CVEs (CWE-642)

CVE-2020-27872
8.8
CVE-2024-8754
8.1
CVE-2019-9496
7.5
CVE-2025-49090
7.1
CVE-2020-26186
6.8
CVE-2022-22154
6.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2018-15382 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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