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No exploitation reportedFix available

CVE-2022-29694

No exploitation reported by the sources we read.

  • Published2022-06-02
  • Fixed in2.0.0
  • WeaknessCWE-476

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Unicorn Engine v2.0.0-rc7 and below was discovered to contain a NULL pointer dereference via qemu_ram_free.

Timeline

dates in UTC
  1. 2022-06-0214:15CVE publishedNVD

Versions per branch

NVD
Unicorn-engine unicorn engine
BranchAffectedFixed in
2.0< 2.0.02.0.0
2.0= 2.0.0no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • unicornCleanStartall versions · fixed in 2.0.1-r0
  • unicornAlpine:v3.24all versions · fixed in 2.0.1-r0

Vendor advisories

  • CVE-2022-29694 Red Hat Product Security

    unicorn: null pointer dereference via qemu_ram_free when HVA malloc fails

Full record on NVD

Fix

  1. Update Unicorn-engine unicorn engine to 2.0.0

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
2022-06-02
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-3x6m-jc93-26vq

Frequently asked questions

What is CVE-2022-29694?

Unicorn Engine v2.0.0-rc7 and below was discovered to contain a NULL pointer dereference via qemu_ram_free.

Is CVE-2022-29694 actively exploited?

Active exploitation of CVE-2022-29694 has not been confirmed. Its EPSS score was 2.0% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-29694?

CVE-2022-29694 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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