Vulnerability Details : CVE-2009-3623

The lookup_cb_cred function in fs/nfsd/nfs4callback.c in the nfsd4 subsystem in the Linux kernel before attempts to access a credentials cache even when a client specifies the AUTH_NULL authentication flavor, which allows remote attackers to cause a denial of service (NULL pointer dereference and system crash) via an NFSv4 mount request.
Vulnerability category: Memory CorruptionBypassGain privilegeDenial of service
Published 2009-10-30 20:30:00
Updated 2023-02-13 01:17:48
Source Red Hat, Inc.
View at NVD,

Threat overview for CVE-2009-3623

Top countries where our scanners detected CVE-2009-3623
Top open port discovered on systems with this issue 52869
IPs affected by CVE-2009-3623 235,060
Threat actors abusing to this issue? Yes
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*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2009-3623

Probability of exploitation activity in the next 30 days: 4.35%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 91 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2009-3623

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Source

CWE ids for CVE-2009-3623

  • When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
    Assigned by: (Primary)

Vendor statements for CVE-2009-3623

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