What is CVE-2023-2875?

CVE-2023-2875 is a medium-severity vulnerability in Escan Antivirus, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2023-05-24.

How severe is CVE-2023-2875?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Is CVE-2023-2875 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

NULL pointer dereference in Escan Antivirus

CVE-2023-2875

A vulnerability, which was classified as problematic, was found in eScan Antivirus 22.0.1400.2443. Affected is the function 0x22E008u in the library PROCOBSRVESX.SYS of the component IoControlCode Handler. The manipulation leads to null pointer dereference. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used. VDB-229854 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Published 2023-05-24 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.003 (23.1th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 23rd percentile — 23.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Escan Antivirus — versions 22.0.1400.2443
Escanav Escan Anti-Virus — versions 22.0.1400.2443

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

Public proof-of-concept exploits

zeze-zeze/WindowsKernelVuln

References

vuldb.com/ (technical-description, Third Party Advisory, vdb-entry)
vuldb.com/ (signature, Permissions Required, permissions-required, Third Party Advisory)
github.com/zeze-zeze/WindowsKernelVuln/blob/master/CVE-2023-2875 (related, Exploit, Third Party Advisory)
drive.google.com/file/d/1fvlP0d9HmApjWhYDjgsdco7g7FPsbn0V/view (Exploit, Third Party Advisory, exploit)

Frequently asked questions

What is CVE-2023-2875?: CVE-2023-2875 is a medium-severity vulnerability in Escan Antivirus, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2023-05-24.
How severe is CVE-2023-2875?: Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2023-2875 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.