CVE-2024-58250Public exploit

Root privilege escalation via reversible ID drop

Published Apr 22, 2025 · Updated Apr 22, 2025

Local privilege escalation in PPP before 2.5.2 allows local users to regain root through pppd's passprompt plugin. In promptpass, the child drops only its effective IDs with seteuid and setegid before execv launches the configured promptprog, leaving saved root IDs recoverable. Exploitation requires setuid-root pppd to load passprompt and execute a user-controlled promptprog; default distribution launches do not meet these conditions.

CVSS severity9.3
Critical
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Local privilege escalation in PPP before 2.5.2 allows local users to regain root through pppd's passprompt plugin. In promptpass, the child drops only its effective IDs with seteuid and setegid before execv launches the configured promptprog, leaving saved root IDs recoverable. Exploitation requires setuid-root pppd to load passprompt and execute a user-controlled promptprog; default distribution launches do not meet these conditions.

The record

CVE
CVE-2024-58250
Published
Apr 22, 2025
Updated
Apr 22, 2025
Vendor
PPP Project
Product
PPP
Classifications
CWE-426, T1548.001
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 22, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 22, 2025Record 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=0 <2.5.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

PPP Project · PPPversion=0 <2.5.2

Published CVSS scores

9.3MITRECVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

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.

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No observations available

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

Weakness, pattern, technique

CWE-426Untrusted Search Path
T1548.001Abuse Elevation Control Mechanism: Setuid and Setgid

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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