How severe is CVE-2005-1057?

CVE-2005-1057 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2005-1057 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2005-1057?

CVE-2005-1057 primarily affects Cisco Ios. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2005-1057?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2005-1057 published?

CVE-2005-1057 was published on 2005-05-02 and last updated on 2026-06-16.

CVE-2005-1057

CVE-2005-1057 is a high-severity vulnerability in Cisco Ios with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 1% (70th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Cisco Ios
Published: 2005-05-02
Last modified: 2026-06-16

Description

Cisco IOS 12.2T, 12.3 and 12.3T, when using Easy VPN Server XAUTH version 6 authentication, allows remote attackers to bypass authentication via a "malformed packet."

Frequently asked questions

What is CVE-2005-1057?: Cisco IOS 12.2T, 12.3 and 12.3T, when using Easy VPN Server XAUTH version 6 authentication, allows remote attackers to bypass authentication via a "malformed packet."
How severe is CVE-2005-1057?: CVE-2005-1057 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2005-1057 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2005-1057?: CVE-2005-1057 primarily affects Cisco Ios. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2005-1057?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2005-1057 published?: CVE-2005-1057 was published on 2005-05-02 and last updated on 2026-06-16.

References

Affected products (3)

cpe:2.3:o:cisco:ios:12.2t:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.3:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.3t:*:*:*:*:*:*:*

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