# CVE-2023-2875: eScan Antivirus IoControlCode PROCOBSRVESX.SYS 0x22E008u null pointer dereference

> A local attacker can cause a denial of service in eScan Antivirus via a null pointer dereference in the IoControlCode handler.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 24 May 2023
- **Updated:** 2 Aug 2024
- **Also known as:** GHSA-5fgj-3hr2-9fmq

## What is CVE-2023-2875?

CVE-2023-2875 is a medium-severity vulnerability in eScan Antivirus, published on 24 May 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

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.

Weakness: CWE-476 (NULL Pointer Dereference)

## Which versions are affected by CVE-2023-2875?

It affects 1 product.


Products: Escanav Escan Anti-Virus.

## How do I fix CVE-2023-2875?

No fix has been published for CVE-2023-2875 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-2875 being exploited?

There is no known exploitation of CVE-2023-2875 in the wild and no public exploit code.

## Other vulnerabilities in eScan Antivirus

- [CVE-2018-18388](https://insights.sbomify.com/CVE-2018-18388/): Command injection in n/a (critical 9.8)
- [CVE-2025-0798](https://insights.sbomify.com/CVE-2025-0798/): MicroWorld eScan Antivirus Quarantine rtscanner os command injection (critical 9.2)
- [CVE-2023-4383](https://insights.sbomify.com/CVE-2023-4383/): MicroWorld eScan Anti-Virus runasroot incorrect execution-assigned permissions (high 7.8)
- [CVE-2021-26624](https://insights.sbomify.com/CVE-2021-26624/): eScan Anti-Virus Local privilege escalation Vulnerability (high 7.8)
- [CVE-2025-1366](https://insights.sbomify.com/CVE-2025-1366/): MicroWord eScan Antivirus VirusPopUp strcpy stack-based overflow (medium 4.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-2875 and fix it if it is affected.

What it is: CVE-2023-2875 is a medium-severity vulnerability in eScan Antivirus, published on 24 May 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-2875 in the wild and no public exploit code.

Affected product: eScan Antivirus. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2023-2875/ (Markdown: https://insights.sbomify.com/CVE-2023-2875/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-2875
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-2875
- OSV: https://osv.dev/vulnerability/CVE-2023-2875

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-2875/
Summaries are generated and may contain mistakes; the official description above is the record.