How severe is CVE-2022-29694?

CVE-2022-29694 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-2022-29694 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-29694?

CVE-2022-29694 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-2022-29694?

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-2022-29694 published?

CVE-2022-29694 was published on 2022-06-02 and last updated on 2026-06-17.

CVE-2022-29694

CVE-2022-29694 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-476.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
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 NULL pointer dereference via qemu_ram_free.

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.
How severe is CVE-2022-29694?: CVE-2022-29694 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-2022-29694 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-29694?: CVE-2022-29694 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-2022-29694?: 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-2022-29694 published?: CVE-2022-29694 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-2022-29693 — High (CVSS 7.5): Unicorn Engine v2.0.0-rc7 and below was discovered to contain a memory leak via the function uc_close at…
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.

All CVEs affecting Unicorn-engine Unicorn Engine →

Other CWE-476 (NULL Pointer Dereference) vulnerabilities

CVE-2022-36648 — Critical (CVSS 10.0): The hardware emulation in the of_dpa_cmd_add_l2_flood of rocker device model in QEMU, as used in 7.0.0 and earlier,…
CVE-2020-14500 — Critical (CVSS 10.0): Secomea GateManager all versions prior to 9.2c, An attacker can send a negative value and overwrite arbitrary data.
CVE-2010-2495 — Critical (CVSS 10.0): The pppol2tp_xmit function in drivers/net/pppol2tp.c in the L2TP implementation in the Linux kernel before 2.6.34 does…
CVE-2026-46195 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: smb: client: validate dacloffset before building…
CVE-2026-31657 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: batman-adv: hold claim backbone gateways by…
CVE-2026-31436 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: fix possible wrong descriptor…

Browse all CWE-476 (NULL Pointer Dereference) vulnerabilities →