CVE-2000-0519: n/a vulnerability

CVE-2000-0519: Internet Explorer 4.x and 5.x does not properly re-validate an SSL certificate if the user establishes a ne...

Internet Explorer 4.x and 5.x does not properly re-validate an SSL certificate if the user establishes a new SSL session with the same server during the same Internet Explorer session, aka one of two different "SSL Certificate Validation" vulnerabilities.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 8, 2024, 05:21 UTC (UTC+00:00)

Security readout for executives and security teams

Older versions of Internet Explorer (4.x and 5.x) failed to re-check a website's SSL certificate when a user reconnected to the same site during a single browser session. In practice, this meant a warning that should have appeared on a second visit could be suppressed, letting a bad certificate slip by unnoticed. The flaw is over two decades old and affects browsers that are no longer supported in modern environments. Exposure today is minimal. IE 4.x and 5.x are long out of support and virtually absent from managed enterprise fleets. Residual risk is limited to legacy or air-gapped systems still running these browsers, typically in industrial or archival contexts. Modern browsers do not share this validation-caching behavior. Very low priority for modern enterprises. Treat as a legacy hygiene item: confirm no unsupported IE versions remain in the environment. No emergency action is warranted unless legacy Windows systems still run IE 4.x/5.x in sensitive contexts. Mitigation focus: Retire Internet Explorer 4.x/5.x from all endpoints; standardize on a currently supported browser.; Where legacy IE must remain, apply Microsoft security bulletin MS00-039 per vendor guidance.; Isolate any legacy IE hosts from untrusted networks and enforce strict egress controls..

Prepared: Jul 12, 2026, 01:09 UTC (UTC+00:00)

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

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Oct 13, 2000, 04:00 UTC (UTC+00:00)

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

3Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
MS00-039CVE reference · vendor-advisory, x_refsource_MS
ie-revalidate-certificate(4627)CVE reference · vdb-entry, x_refsource_XF

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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