How severe is CVE-1999-0734?

CVE-1999-0734 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-1999-0734 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-1999-0734?

CVE-1999-0734 affects Cisco Ciscosecure. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-1999-0734?

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-1999-0734 published?

CVE-1999-0734 was published on 1999-08-19 and last updated on 2026-06-16.

CVE-1999-0734

CVE-1999-0734 is a high-severity vulnerability in Cisco Ciscosecure 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 Ciscosecure
Published: 1999-08-19
Last modified: 2026-06-16

Description

A default configuration of CiscoSecure Access Control Server (ACS) allows remote users to modify the server database without authentication.

Frequently asked questions

What is CVE-1999-0734?: A default configuration of CiscoSecure Access Control Server (ACS) allows remote users to modify the server database without authentication.
How severe is CVE-1999-0734?: CVE-1999-0734 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-1999-0734 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-1999-0734?: CVE-1999-0734 affects Cisco Ciscosecure. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-1999-0734?: 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-1999-0734 published?: CVE-1999-0734 was published on 1999-08-19 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:cisco:ciscosecure:*:*:*:*:*:*:*:*