CVE-2001-1016

What it is

PGP Corporate Desktop before 7.1, Personal Security before 7.0.3, Freeware before 7.0.3, and E-Business Server before 7.1 does not properly display when invalid userID's are used to sign a message, which could allow an attacker to make the user believe that the document has been signed by a trusted third party by adding a second, invalid user ID to a key which has already been signed by the third party, aka the "PGPsdk Key Validity Vulnerability."

At a glance

Exploitability

Can be exploited over the network without logging in. Limited direct impact.

Exploit odds

1.4% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2001-09-04 04:00 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-16 21:55 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 1.4% in the next 30 days (EPSS).
• Severity: 7.5 HIGH (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2001-09-04 04:00 UTC

Last modified

2026-06-16 21:55 UTC

Exploit probability

1.4% · EPSS, next 30 days

Record status

Modified

Affected

• Pgp Corporate Desktop 7.1
• Pgp e-business Server 6.5.8
• Pgp e-business Server 7.0.4
• Pgp e-business Server 7.1
• Pgp Freeware 7.0.3
• Pgp Personal Security 7.0.3
• Pgp 5.0
• Pgp 6.0.2

Attack profile CVSS 2.0 · 7.5

Attack vector

Network

Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2001-1016.md and follow it. Check whether this project is affected by CVE-2001-1016. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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