CVE-2018-25261Public exploit

Local code execution via external-path SEH overwrite

Published Apr 22, 2026 · Updated Apr 22, 2026

Buffer overflow in Iperius Backup 5.8.1 allows local users to execute arbitrary code through a crafted external file path. The backup-job editor accepts an oversized external file location value that overwrites SEH control data when the completed job runs. A user must create and execute the job locally; successful exploitation runs code with the application's privileges, while the published proof of concept launches a process.

CVSS severity8.6
High
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in Iperius Backup 5.8.1 allows local users to execute arbitrary code through a crafted external file path. The backup-job editor accepts an oversized external file location value that overwrites SEH control data when the completed job runs. A user must create and execute the job locally; successful exploitation runs code with the application's privileges, while the published proof of concept launches a process.

The record

CVE
CVE-2018-25261
Published
Apr 22, 2026
Updated
Apr 22, 2026
Vendor
Enter Srl
Product
Iperius Backup
Classifications
CWE-787, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 22, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 22, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=5.8.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Enter Srl · Iperius Backupversion=5.8.1

Published CVSS scores

8.6VulnCheckCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
7.8NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.4VulnCheckCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1203Exploitation for Client Execution

Public exploit references

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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