Unrated severityNVD Advisory· Published Jul 9, 2014· Updated Jun 17, 2026

CVE-2014-3309

Description

The NTP implementation in Cisco IOS and IOS XE does not properly support use of the access-group command for a "deny all" configuration, which allows remote attackers to bypass intended restrictions on time synchronization via a standard query, aka Bug ID CSCuj66318.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Cisco Systems, Inc./Cisco iOS2 versions
cpe:2.3:o:cisco:ios:-:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:cisco:ios:-:*:*:*:*:*:*:*
- (no CPE)
Cisco Systems, Inc./iOS Xe2 versions
cpe:2.3:o:cisco:ios_xe:-:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:cisco:ios_xe:-:*:*:*:*:*:*:*
- (no CPE)

Patches

Vulnerability mechanics

References

tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2014-3309nvdVendor Advisory
www.securityfocus.com/bid/68463nvd
www.securitytracker.com/id/1030549nvd
exchange.xforce.ibmcloud.com/vulnerabilities/94420nvd

News mentions

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