How severe is CVE-1999-0700?

CVE-1999-0700 has a CVSS 2.0 base score of 6.2, rated medium severity.

Is CVE-1999-0700 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-1999-0700?

CVE-1999-0700 primarily affects Microsoft Windows 2000. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-1999-0700?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-1999-0700 published?

CVE-1999-0700 was published on 1999-07-29 and last updated on 2026-06-16.

CVE-1999-0700

CVE-1999-0700 is a medium-severity vulnerability in Microsoft Windows 2000 with a CVSS 2.0 base score of 6.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

Severity: Medium (CVSS 2.0 base score 6.2)
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Microsoft Windows 2000
Published: 1999-07-29
Last modified: 2026-06-16

Description

Buffer overflow in Microsoft Phone Dialer (dialer.exe), via a malformed dialer entry in the dialer.ini file.

Frequently asked questions

What is CVE-1999-0700?: Buffer overflow in Microsoft Phone Dialer (dialer.exe), via a malformed dialer entry in the dialer.ini file.
How severe is CVE-1999-0700?: CVE-1999-0700 has a CVSS 2.0 base score of 6.2, rated medium severity.
Is CVE-1999-0700 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-1999-0700?: CVE-1999-0700 primarily affects Microsoft Windows 2000. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-1999-0700?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-1999-0700 published?: CVE-1999-0700 was published on 1999-07-29 and last updated on 2026-06-16.

References

Affected products (8)

cpe:2.3:o:microsoft:windows_2000:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_nt:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_nt:4.0:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_nt:4.0:*:terminal_server:*:*:*:*:*
cpe:2.3:o:microsoft:windows_nt:4.0:sp1:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_nt:4.0:sp2:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_nt:4.0:sp3:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_nt:4.0:sp4:*:*:*:*:*:*

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