CVE-2022-0615Network attack vector

System denial of service via kernel use-after-free

Published Feb 25, 2022 · Updated Sep 16, 2024

Use-after-free in ESET Endpoint Antivirus and Server Security for Linux allows remote attackers to interrupt the host system. ESET identifies the locus as the eset_rtp kernel module but has not disclosed which object is freed or which later operation reuses it. Network access requires no privileges or user interaction, but exploitation has high complexity and affects availability only.

CVSS severity5.9
Medium
EPSS probability0.83%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in ESET Endpoint Antivirus and Server Security for Linux allows remote attackers to interrupt the host system. ESET identifies the locus as the eset_rtp kernel module but has not disclosed which object is freed or which later operation reuses it. Network access requires no privileges or user interaction, but exploitation has high complexity and affects availability only.

The record

CVE
CVE-2022-0615
Published
Feb 25, 2022
Updated
Sep 16, 2024
Vendor
ESET
Product
ESET Server Security for Linux
Classifications
CWE-416, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 25, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=7.2.463.0 <=7.2.574.0
  2. Affected versionversion=8.0.375.0 <=8.1.813.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ESET · ESET Server Security for Linuxversion=7.2.463.0 <=7.2.574.0; version=8.0.375.0 <=8.1.813.0
ESET · ESET Endpoint Antivirus for Linuxversion=7.1.6.0 <=7.1.9.0; version=8.0.3.0 <=8.1.5.0

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.8NIST NVDAV:N/AC:L/Au:N/C:N/I:N/A:C
5.9ESETCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-416Use After Free
T1499Endpoint Denial of Service

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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