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CVE Record

CVE-2005-1058: Cisco IOS 12.2T, 12.3 and 12.3T, when processing an ISAKMP profile that specifies XAUTH authentication afte...

Cisco IOS 12.2T, 12.3 and 12.3T, when processing an ISAKMP profile that specifies XAUTH authentication after Phase 1 negotiation, may not process certain attributes in the ISAKMP profile that specifies XAUTH, which allows remote attackers to bypass XAUTH and move to Phase 2 negotiations.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysis

Security readout for executives and security teams

This is an old Cisco IOS VPN authentication flaw. On IOS 12.2T, 12.3, and 12.3T, some ISAKMP/XAUTH profiles could fail to enforce XAUTH correctly, letting a remote attacker progress toward VPN Phase 2 without completing that authentication step. Exposure is most likely on legacy Cisco IOS VPN gateways running 12.2T, 12.3, or 12.3T with ISAKMP profiles that use XAUTH after Phase 1 negotiation. Organizations without old Cisco IOS inventory or VPN configuration visibility may miss this. Prioritize if legacy Cisco IOS VPN infrastructure remains in production, especially internet-facing gateways. The business risk is unauthorized VPN negotiation progress caused by authentication bypass behavior, but current active exploitation is not established in the provided sources. Mitigation focus: Review Cisco advisory for fixed IOS releases or documented workarounds.; Inventory Cisco IOS VPN devices running 12.2T, 12.3, or 12.3T.; Replace or upgrade affected legacy IOS VPN gateways per Cisco guidance..

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

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
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

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Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

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