CVE-2024-0862Network attack vector

Private-network HTTP access via authenticated SSRF

Published May 14, 2024 · Updated Aug 20, 2024

Server-side request forgery in Proofpoint Enterprise Protection allows remote authenticated users to relay HTTP requests to private addresses. The Encryption endpoint makes the Protection server fetch a user-selected HTTP destination without blocking otherwise private network addresses. A valid account is required, and the disclosed consequence is limited to reaching private HTTP services; no write or availability impact is reported.

CVSS severity5.0
Medium
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Server-side request forgery in Proofpoint Enterprise Protection allows remote authenticated users to relay HTTP requests to private addresses. The Encryption endpoint makes the Protection server fetch a user-selected HTTP destination without blocking otherwise private network addresses. A valid account is required, and the disclosed consequence is limited to reaching private HTTP services; no write or availability impact is reported.

The record

CVE
CVE-2024-0862
Published
May 14, 2024
Updated
Aug 20, 2024
Vendor
Proofpoint
Product
Proofpoint Enterprise Protection
Classifications
CWE-918
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 14, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 20, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=8.18.6 <patch 4868 changes=[{"at":"patch 4868","status":"unaffected"}]
  2. Affected versionversion=8.20.0 <patch 4869 changes=[{"at":"patch 4869","status":"unaffected"}]
  3. Affected versionversion=8.20.2 <patch 4870 changes=[{"at":"patch 4870","status":"unaffected"}]
  4. Affected versionversion=8.20.4 <patch 4871 changes=[{"at":"patch 4871","status":"unaffected"}]
  5. Affected versionversion=8.21.0 <patch 4871 changes=[{"at":"patch 4872","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Proofpoint · Proofpoint Enterprise Protectionversion=8.18.6 <patch 4868 changes=[{"at":"patch 4868","status":"unaffected"}]; version=8.20.0 <patch 4869 changes=[{"at":"patch 4869","status":"unaffected"}]; version=8.20.2 <patch 4870 changes=[{"at":"patch 4870","status":"unaffected"}]; version=8.20.4 <patch 4871 changes=[{"at":"patch 4871","status":"unaffected"}]; version=8.21.0 <patch 4871 changes=[{"at":"patch 4872","status":"unaffected"}]

Published CVSS scores

5.0ProofpointCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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