CVE-2000-0517 — Netscape 4.73 and earlier does not properly warn users about a potentially invalid certificate if the user has previously accepted the certificate for a different web site, which could allow remote attackers to spoof a legitimate web site by compromising that site's DNS information

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MEDIUM

Netscape 4.73 and earlier does not properly warn users about a potentially invalid certificate if the user has previously accepted the certificate for a different web site, which could allow remote attackers to spoof a legitimate web site by compromising that site's DNS information

Published Oct 13, 2000

5.0

MEDIUM

CVSS 2.0

EPSS 1.29%

Description

Netscape 4.73 and earlier does not properly warn users about a potentially invalid certificate if the user has previously accepted the certificate for a different web site, which could allow remote attackers to spoof a legitimate web site by compromising that site's DNS information.

Affected products

Remediation

No remediation recorded yet.

Metrics

1.29% 0.01294

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.01294

Score over time

2022–2026

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Table of values (10 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	1.29% (0.01294)	69.27th	v5 (v2026.06.15)
Jun 15, 2026	1.29% (0.01294)	66.47th	v5 (v2026.06.15)
Mar 17, 2025	0.95% (0.00954)	74.83th	v4 (v2025.03.14)
Dec 12, 2024	0.40% (0.00405)	74.58th	v3 (v2023.03.01)
Feb 8, 2024	0.40% (0.00405)	73.07th	v3 (v2023.03.01)
Mar 7, 2023	0.40% (0.00405)	69.65th	v3 (v2023.03.01)
Mar 6, 2023	1.14% (0.01136)	59.45th	v2 (v2022.01.01)
Oct 18, 2022	1.14% (0.01136)	58.28th	v2 (v2022.01.01)
Apr 1, 2022	1.14% (0.01136)	56.27th	v2 (v2022.01.01)
Feb 4, 2022	1.14% (0.01136)	34.23th	v2 (v2022.01.01)

Weaknesses (0)

No CWE recorded.

References (3)

http://www.cert.org/advisories/CA-2000-08.html
third-party-advisoryx_refsource_CERTPatchThird Party AdvisoryUS Government Resource
http://www.securityfocus.com/bid/1260
vdb-entryx_refsource_BIDPatchVendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/4550
vdb-entryx_refsource_XF

Link	Providers	Tags
http://www.cert.org/advisories/CA-2000-08.html		third-party-advisoryx_refsource_CERTPatchThird Party AdvisoryUS Government Resource
http://www.securityfocus.com/bid/1260		vdb-entryx_refsource_BIDPatchVendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/4550		vdb-entryx_refsource_XF

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner mitre

Published Oct 13, 2000

Updated Aug 8, 2024

Reserved Jul 11, 2000

Link CVE-2000-0517

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 16, 2026

Link CVE-2000-0517

Red Hat

Severity n/a

Public date n/a

Links CVE-2000-0517