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CVE-2023-1628· NVD / CVE Program· CNA VulDB

Jianming Antivirus IoControlCode kvcore.sys null pointer dereference

A vulnerability classified as problematic has been found in Jianming Antivirus 16.2.2022.418. Affected is an unknown function in the library kvcore.sys of the component IoControlCode Handler. The manipulation leads to null pointer dereference. The attack needs to be approached locally. The exploit has been disclosed to the public and may be used. VDB-224010 is the identifier assigned to this vulnerability.

MediumCVSS 5.5 · v3.1—No exploit No fix recorded

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Published
Mar 25, 2023
Updated
Jun 17, 2026
EPSS
0.3% · 22th percentile
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Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.3%

CISA SSVC decision

Exploitation
proof of concept
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
5.5
CNA · VulDB
5.5
agree

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Affected systems

VendorProduct
jiangminjiangmin antivirus

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • jiangmin jiangmin antivirus16.2.2022.418

Versions reported by the vendor

Affected version ranges reported by the assigning authority (VulDB). Independent of NVD's CPE analysis and usually ahead of it.

  • Jianming Antivirus

    • 16.2.2022.418affected

Same product

jiangmin: all records

Other highest-scoring records for the same primary product.

  • CVE-2023-1626Jianming Antivirus IoControlCode kvcore.sys memory corruption
    31Monitor
  • CVE-2023-1629JiangMin Antivirus IOCTL kvcore.sys 0x222010 memory corruption
    31Monitor
  • CVE-2023-1631JiangMin Antivirus IOCTL kvcore.sys 0x222010 null pointer dereference
    22Monitor
  • CVE-2023-1630JiangMin Antivirus IOCTL kvcore.sys 0x222000 denial of service
    22Monitor
  • CVE-2023-1627Jianming Antivirus IoControlCode kvcore.sys denial of service
    22Monitor
  • CVE-2020-14955In Jiangmin Antivirus 16.0.13.129, the driver file (KVFG.sys) allows local users to cause a denial of service (BSOD) or possibly have unspec
    22Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-476 · NULL Pointer Dereference

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records