CVE-2018-15382 json
Cisco HyperFlex Software Static Signing Key Vulnerability
published 2018-10-05 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-7260
- cvss
- 8.6
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.3%
- EPSS 1.3% chance of exploitation in 30 days, percentile 70%
- public exploits
- 0
- none known
Summary
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.
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 23 mo ago
Exploit prediction
1.28% chance of exploitation in the next 30 days, higher than 70% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 8.6 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Affected products
- Cisco Cisco HyperFlex HX-Series
Classification
- Weakness
-
- CWE-642 External Control of Critical State Data
References
-
tools.cisco.com
/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181003-hyperflex-secret
vendor-advisory
-
securityfocus.com
/bid/105518
vdb-entry, third-party-advisory
Sources
- CVE List CVE-2018-15382
- NVD CVE-2018-15382
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