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CVE-2022-29694

25
FAUCET Score

CVE-2022-29694 is a NULL pointer dereference vulnerability affecting Unicorn Engine v2.0.0-rc7 and earlier versions, specifically within the qemu_ram_free function. This high-severity vulnerability (CVSS 7.5) can be exploited remotely with low attack complexity, potentially leading to a denial of service. While no known exploits, Metasploit modules, or Nuclei templates are publicly available, and there's minimal community discussion, its potential for remote impact warrants attention.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.0.0CPE matchmatch criteria
cpe:2.3:a:unicorn-engine:unicorn_engine:*:*:*:*:*:*:*:*
2.0.0CPE matchmatch criteria
cpe:2.3:a:unicorn-engine:unicorn_engine:2.0.0:-:*:*:*:*:*:*
2.0.0CPE matchmatch criteria
cpe:2.3:a:unicorn-engine:unicorn_engine:2.0.0:rc1:*:*:*:*:*:*
2.0.0CPE matchmatch criteria
cpe:2.3:a:unicorn-engine:unicorn_engine:2.0.0:rc2:*:*:*:*:*:*
2.0.0CPE matchmatch criteria
cpe:2.3:a:unicorn-engine:unicorn_engine:2.0.0:rc3:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.87%
Probability of exploitation in next 30 days
EPSS Percentile
77.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0187 is in the 60th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / unicorn-engine/unicorn/commit/3d3deac5e6d38602b689c4fef5dac004f07a2e63
PatchThird Party Advisory
github.com / unicorn-engine/unicorn/issues/1588
ExploitIssue TrackingThird Party Advisory
github.com / unicorn-engine/unicorn/pull/1593/commits/31389e59457f304be3809f9679f91a42daa7ebaa
PatchThird Party Advisory
github.com / unicorn-engine/unicorn/pull/1593/commits/6a879a082d4d67a5d13f1233ae0334cde0a7f844
PatchThird Party Advisory
violentbinary.github.io / posts/2-simple-analysis-of-software-virtualization-of-memory-in-unicorn-engine
ExploitTechnical DescriptionThird Party Advisory