How severe is CVE-2023-1640?

CVE-2023-1640 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-1640 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-1640?

CVE-2023-1640 affects Iobit Malware Fighter. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-1640?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-1640 published?

CVE-2023-1640 was published on 2023-03-26 and last updated on 2026-06-17.

CVE-2023-1640

CVE-2023-1640 is a medium-severity vulnerability in Iobit Malware Fighter with a CVSS 3.x base score of 5.5. 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-404.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 4.6
EPSS exploit prediction: 0% (24th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-404
Affected product: Iobit Malware Fighter
Published: 2023-03-26
Last modified: 2026-06-17

Description

A vulnerability classified as problematic was found in IObit Malware Fighter 9.4.0.776. This vulnerability affects the function 0x222010 in the library ObCallbackProcess.sys of the component IOCTL Handler. The manipulation leads to denial of service. The attack needs to be approached locally. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-224020.

Frequently asked questions

What is CVE-2023-1640?: A vulnerability classified as problematic was found in IObit Malware Fighter 9.4.0.776. This vulnerability affects the function 0x222010 in the library ObCallbackProcess.sys of the component IOCTL Handler. The manipulation leads to denial of service. The attack needs to be approached locally. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-224020.
How severe is CVE-2023-1640?: CVE-2023-1640 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-1640 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-1640?: CVE-2023-1640 affects Iobit Malware Fighter. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-1640?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-1640 published?: CVE-2023-1640 was published on 2023-03-26 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:iobit:malware_fighter:9.4.0.776:*:*:*:*:*:*:*

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