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CVE-2024-3676The Proofpoint Encryption endpoint of Proofpoint Enterprise Protection contains an Improper Input Validation vulnerability that allows an…

Description

The Proofpoint Encryption endpoint of Proofpoint Enterprise Protection contains an Improper Input Validation vulnerability that allows an unauthenticated remote attacker with a specially crafted HTTP request to create additional Encryption user accounts under the attacker's control.  These accounts are able to send spoofed email to any users within the domains configured by the Administrator.

Timeline

  1. ID reserved

    By Proofpoint

  2. · 33 days later

    Published

  3. · 3 months later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2024-3676, by who scored it
Scored byCVSSScoreVector
ProofpointCNA (assigner)3.1High7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
NVDNVD · Deferred3.1High7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS (exploitation in 30 days)
0.36% · top 69% of all CVEs (12 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: yes · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.

Affected products

  • Proofpoint · Enterprise Protection

    • affected 8.18.6 – < patch 4868
    • affected 8.20.0 – < patch 4869
    • affected 8.20.2 – < patch 4870
    • affected 8.20.4 – < patch 4871
    • affected 8.21.0 – < patch 4871

References

References1

Sources

The same CVE in the primary databases and aggregators, to check against.

Badge for a README or a ticket

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[![CVE-2024-3676](https://cveledger.app/badge/CVE-2024-3676.svg)](https://cveledger.app/cve/CVE-2024-3676)

Record last updated .