CVE-2021-36807Network attack vector

Authenticated code execution via User Portal SQL injection

Published Nov 26, 2021 · Updated Aug 4, 2024

SQL injection in Sophos UTM before 9.708 MR8 allows remote authenticated users to execute code through the User Portal. Sophos identifies the User Portal as the affected component but has not disclosed the vulnerable request, parameter, or query construction. A valid portal account and network reachability are required; successful exploitation can execute code on the appliance.

CVSS severity8.8
High
EPSS probability1.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SQL injection in Sophos UTM before 9.708 MR8 allows remote authenticated users to execute code through the User Portal. Sophos identifies the User Portal as the affected component but has not disclosed the vulnerable request, parameter, or query construction. A valid portal account and network reachability are required; successful exploitation can execute code on the appliance.

The record

CVE
CVE-2021-36807
Published
Nov 26, 2021
Updated
Aug 4, 2024
Vendor
Sophos
Product
Sophos UTM
Classifications
CWE-89, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 26, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record 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=unspecified <9.708 MR8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Sophos · Sophos UTMversion=unspecified <9.708 MR8

Published CVSS scores

8.8Sophos LimitedCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.5NIST NVDAV:N/AC:L/Au:S/C:P/I:P/A:P

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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