LiveActive security incident?Get immediate response
CVE Record

CVE-2026-1814: Rapid7 Nexpose Insecure Java Keystore Password Generation

Rapid7 Nexpose versions 6.4.50 and later are vulnerable to an insufficient entropy issue in the CredentialsKeyStorePassword.generateRandomPassword() method. When updating legacy keystore passwords, the application generates a new password with insufficient length (7-12 characters) and a static prefix 'p', resulting in a weak keyspace. An attacker with access to the nsc.ks file can brute-force this password using consumer-grade hardware to decrypt stored credentials.

MediumCVSS 6.8Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

Rapid7 Nexpose/InsightVM 6.4.50 and later may create weak replacement passwords for a Java keystore. If an attacker already obtains the nsc.ks file, they may brute-force the keystore password and decrypt stored credentials. This is not described as remotely exploitable by itself, but credential exposure could be significant.

Executive priority

Treat as a credential-protection issue. It likely requires existing local or privileged access, so urgency is lower than internet-facing RCE, but exposure of stored credentials could enable broader compromise. Prioritize validation on production scanners and credential rotation if file access is suspicious.

Technical view

The issue is insufficient entropy in CredentialsKeyStorePassword.generateRandomPassword() when updating legacy keystore passwords. Generated passwords are 7-12 characters with a static 'p' prefix, reducing keyspace. The CVSS v4 score is 6.8 with local attack vector, high attack complexity, and high privileges required. CWE-331 applies.

Likely exposure

Exposure is most relevant to organizations running Rapid7 Nexpose/InsightVM 6.4.50 or later where legacy keystore passwords were updated and the nsc.ks file could be accessed by a privileged local user or compromised host process.

Exploitation context

The provided sources do not show CISA KEV listing or confirmed active exploitation. Exploitation depends on access to the nsc.ks file and offline brute forcing; the vulnerability alone does not provide initial system access.

Researcher notes

The public bundle identifies weak password generation but does not provide a named vendor fix. Avoid assuming exploit-in-the-wild. Key questions are upgrade status, whether affected password regeneration occurred, and whether nsc.ks was accessible beyond the Nexpose/InsightVM service context.

Mitigation direction

  • Check Rapid7 guidance and advisories for fixed versions or supported remediation.
  • Restrict filesystem access to nsc.ks to only required service accounts.
  • Review host compromise risk where Nexpose/InsightVM stores the keystore.
  • Rotate stored credentials if nsc.ks exposure is suspected or confirmed.

Validation and detection

  • Inventory Rapid7 Nexpose/InsightVM deployments and versions.
  • Determine whether version 6.4.50 or later is in use.
  • Confirm whether legacy keystore password update logic may have run.
  • Audit permissions and access logs for the nsc.ks file.
  • Check vendor advisories for updated remediation status.
Prepared
Confidence
medium
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-331: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
description · low confidence lookup

Credential and access behavior lookup

The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2026-1814 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Medium
CVSS
6.8 (4.0)
Known Exploited
No
Published

Vector: CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
6.8CVSS 4.0MediumCVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N——Primary CVE score

Vulnerability scoring details

Base CVSS 4.0 score

6.8Medium
CVSS 4.0 vector shape for CVE-2026-1814Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

Vector: CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Attack Requirements
NonePresent
Privileges Required
NoneLowHigh
User Interaction
NonePassiveActive
VS Confidentiality
HighLowNone
VS Integrity
HighLowNone
VS Availability
HighLowNone
SS Confidentiality
HighLowNone
SS Integrity
HighLowNone
SS Availability
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Rapid7InsightVM/Nexpose6.4.50unaffected
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-331 · source CWE mapping

Insufficient Entropy

Insufficient Entropy represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.