CVE-2013-4566: n/a vulnerability

CVE-2013-4566: mod_nss 1.0.8 and earlier, when NSSVerifyClient is set to none for the server/vhost context, does not enfor...

mod_nss 1.0.8 and earlier, when NSSVerifyClient is set to none for the server/vhost context, does not enforce the NSSVerifyClient setting in the directory context, which allows remote attackers to bypass intended access restrictions.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 16:45 UTC (UTC+00:00)

Security readout for executives and security teams

Some web servers using older mod_nss could fail to apply client-certificate requirements set for a directory when the broader server or virtual host setting disables client verification. That can let a remote user reach content that administrators intended to restrict. Exposure is likely limited to Apache deployments using mod_nss 1.0.8 or earlier with mixed server/vhost and directory-level NSSVerifyClient policy. The bundle provides no CPEs, inventory scope, or fixed-version details. Treat as a targeted access-control risk for legacy mod_nss deployments, not a broad internet emergency. Prioritize systems protecting sensitive directories with client-certificate rules and confirm vendor patch status. Mitigation focus: Check Red Hat and openSUSE advisories for applicable mod_nss updates.; Upgrade affected mod_nss packages where vendor guidance provides a fixed package.; Review NSSVerifyClient inheritance across server, vhost, and directory scopes..

Prepared: Jun 14, 2026, 15:13 UTC (UTC+00:00)

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

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Dec 12, 2013, 18:00 UTC (UTC+00:00)

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.

0CVSS vectors

0Timeline events

0ADP providers

2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://bugzilla.redhat.com/show_bug.cgi?id=1016832CVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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