How severe is CVE-2022-29693?

CVE-2022-29693 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2022-29693 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-29693?

CVE-2022-29693 primarily affects Unicorn-engine Unicorn Engine. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-29693?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2022-29693 published?

CVE-2022-29693 was published on 2022-06-02 and last updated on 2026-06-17.

CVE-2022-29693

CVE-2022-29693 is a high-severity vulnerability in Unicorn-engine Unicorn Engine with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-401.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-401
Affected product: Unicorn-engine Unicorn Engine
Published: 2022-06-02
Last modified: 2026-06-17

Description

Unicorn Engine v2.0.0-rc7 and below was discovered to contain a memory leak via the function uc_close at /my/unicorn/uc.c.

Frequently asked questions

What is CVE-2022-29693?: Unicorn Engine v2.0.0-rc7 and below was discovered to contain a memory leak via the function uc_close at /my/unicorn/uc.c.
How severe is CVE-2022-29693?: CVE-2022-29693 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2022-29693 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-29693?: CVE-2022-29693 primarily affects Unicorn-engine Unicorn Engine. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-29693?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2022-29693 published?: CVE-2022-29693 was published on 2022-06-02 and last updated on 2026-06-17.

References

Affected products (8)

cpe:2.3:a:unicorn-engine:unicorn_engine:*:*:*:*:*:*:*:*
cpe:2.3:a:unicorn-engine:unicorn_engine:2.0.0:-:*:*:*:*:*:*
cpe:2.3:a:unicorn-engine:unicorn_engine:2.0.0:rc1:*:*:*:*:*:*
cpe:2.3:a:unicorn-engine:unicorn_engine:2.0.0:rc2:*:*:*:*:*:*
cpe:2.3:a:unicorn-engine:unicorn_engine:2.0.0:rc3:*:*:*:*:*:*
cpe:2.3:a:unicorn-engine:unicorn_engine:2.0.0:rc4:*:*:*:*:*:*
cpe:2.3:a:unicorn-engine:unicorn_engine:2.0.0:rc5:*:*:*:*:*:*
cpe:2.3:a:unicorn-engine:unicorn_engine:2.0.0:rc6:*:*:*:*:*:*

More vulnerabilities in Unicorn-engine Unicorn Engine

CVE-2021-44078 — High (CVSS 8.1): An issue was discovered in split_region in uc.c in Unicorn Engine before 2.0.0-rc5. It allows local attackers to escape…
CVE-2022-29692 — High (CVSS 7.8): Unicorn Engine v1.0.3 was discovered to contain a use-after-free vulnerability via the hook function.
CVE-2022-29695 — High (CVSS 7.5): Unicorn Engine v2.0.0-rc7 contains memory leaks caused by an incomplete unicorn engine initialization.
CVE-2022-29694 — High (CVSS 7.5): Unicorn Engine v2.0.0-rc7 and below was discovered to contain a NULL pointer dereference via qemu_ram_free.
CVE-2021-36979 — Medium (CVSS 5.5): Unicorn Engine 1.0.2 has an out-of-bounds write in tb_flush_armeb (called from cpu_arm_exec_armeb and…
CVE-2020-36431 — Medium (CVSS 5.5): Unicorn Engine 1.0.2 has an out-of-bounds write in helper_wfe_arm.

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