CVE-2007-4773Public exploit

Sandbox escape via raced system-call arguments

Published Jan 15, 2020 · Updated Aug 7, 2024

Policy enforcement bypass in Systrace before 1.6.0 allows local users to escape system-call restrictions through an argument race. The user-space policy monitor inspects an indirect system-call argument, but another thread can rewrite the shared buffer before the kernel uses it. Control of a confined local process is required; a successful race can bypass file, network, or audit restrictions and escape the sandbox.

CVSS severity9.8
Critical
EPSS probability1.74%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Policy enforcement bypass in Systrace before 1.6.0 allows local users to escape system-call restrictions through an argument race. The user-space policy monitor inspects an indirect system-call argument, but another thread can rewrite the shared buffer before the kernel uses it. Control of a confined local process is required; a successful race can bypass file, network, or audit restrictions and escape the sandbox.

The record

CVE
CVE-2007-4773
Published
Jan 15, 2020
Updated
Aug 7, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-415, T1211
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Jan 15, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 7, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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.

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

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-415Double Free
T1211Exploitation for Defense Evasion

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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