CVE-2000-0678: n/a vulnerability

CVE-2000-0678: PGP 5.5.x through 6.5.3 does not properly check if an Additional Decryption Key (ADK) is stored in the sign...

PGP 5.5.x through 6.5.3 does not properly check if an Additional Decryption Key (ADK) is stored in the signed portion of a public certificate, which allows an attacker who can modify a victim's public certificate to decrypt any data that has been encrypted with the modified certificate.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 8, 2024, 05:28 UTC (UTC+00:00)

Security readout for executives and security teams

This legacy PGP flaw could let someone alter a victim’s public certificate so future encrypted messages can also be decrypted by the attacker. The business risk is exposure of supposedly confidential communications where affected PGP versions and untrusted modified certificates remain in use. Exposure is most likely in legacy environments still using PGP 5.5.x through 6.5.3 or archived workflows relying on old public certificates without integrity validation. Treat this as a targeted confidentiality risk for legacy encryption workflows. Prioritize inventory and retirement of affected PGP versions, especially where sensitive customer, legal, financial, or operational communications may rely on old certificates. Mitigation focus: Inventory any remaining PGP 5.5.x through 6.5.3 deployments.; Check CERT CA-2000-18 and vendor guidance for supported remediation.; Replace or retire affected legacy PGP installations where feasible..

Prepared: Jul 12, 2026, 00:24 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

1Source 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

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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