CVE-2023-1626

Local memory corruption via driver control handling

Published Mar 25, 2023 · Updated Aug 2, 2024

Memory corruption in the kvcore.sys driver in Jianming Antivirus 16.2.2022.418 allows local users to corrupt kernel memory. The published record identifies the IoControlCode handler but does not disclose the specific control code, memory operation, or corrupted object. Low-privileged local access is required, and the disclosed evidence establishes no consequence more specific than limited confidentiality, integrity, and availability impact.

CVSS severity7.8
High
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory corruption in the kvcore.sys driver in Jianming Antivirus 16.2.2022.418 allows local users to corrupt kernel memory. The published record identifies the IoControlCode handler but does not disclose the specific control code, memory operation, or corrupted object. Low-privileged local access is required, and the disclosed evidence establishes no consequence more specific than limited confidentiality, integrity, and availability impact.

The record

CVE
CVE-2023-1626
Published
Mar 25, 2023
Updated
Aug 2, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-119
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 25, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
5.3VulDB CNACVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
4.3VulDB CNAAV:L/AC:L/Au:S/C:P/I:P/A:P
5.3VulDB CNACVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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