Hosted Email Security vulnerabilitiesAnd the versions its exploited flaws hit.

Product3 known exploited0 versions
The short answer

Hosted Email Security is made by SonicWall. We track 4 published vulnerabilities in it, across 0 versions. 3 of them are on the list of flaws known to be exploited, the newest added on 3 November 2021. If you run Hosted Email Security, check your version against the exploited flaws below and patch those first.

Check your version

The most recent Hosted Email Security flaw added to the known-exploited list is CVE-2021-20021, on 3 November 2021. We keep watching the known-exploited list.

Versions

Which versions of Hosted Email Security do the exploited flaws hit?

Each exploited flaw lists the versions it affects, as published by the vendor. Find your version, then patch.

Known exploited

Which Hosted Email Security vulnerabilities are being exploited?

3 flaws are on the government list of vulnerabilities known to be exploited. These are the ones criminals are using now, so they go first, whatever their severity score says.

  1. 9.8
    CVE-2021-20021CriticalKnown exploited
    SonicWall Email Security Improper Privilege Management Vulnerability

    SonicWall Email Security contains an improper privilege management vulnerability that allows an attacker to create an administrative account by sending a crafted HTTP request to the remote host.

    Chance of use89%Known exploited since3 Nov 2021
  2. 7.2
    CVE-2021-20022HighKnown exploited
    SonicWall Email Security Unrestricted Upload of File Vulnerability

    SonicWall Email Security contains an unrestricted upload of file with dangerous type vulnerability that allows a post-authenticated attacker to upload a file to the remote host.

    Chance of use17%Known exploited since3 Nov 2021
  3. 4.9
    CVE-2021-20023MediumKnown exploited
    SonicWall Email Security Path Traversal Vulnerability

    SonicWall Email Security contains a path traversal vulnerability that allows a post-authenticated attacker to read files on the remote host.

    Chance of use52%Known exploited since3 Nov 2021
Exploit likelihood

Which Hosted Email Security flaws are most likely to be used?

Ranked by the latest exploit-likelihood forecast: the chance each flaw is used in an attack in the next 30 days. A high severity score on its own doesn't tell you that. Flaws shared by many other makers' products are left out.

50% or more10% to 49%Under 10%
  1. 89%
    CVE-2021-20021CriticalKnown exploited

    A vulnerability in the SonicWall Email Security version 10.0.9.x allows an attacker to create an administrative account by sending a crafted HTTP request to the remote host.

    CVSS9.8Published9 Apr 2021
  2. 52%
    CVE-2021-20023MediumKnown exploited

    SonicWall Email Security version 10.0.9.x contains a vulnerability that allows a post-authenticated attacker to read an arbitrary file on the remote host.

    CVSS4.9Published20 Apr 2021
  3. 17%
    CVE-2021-20022HighKnown exploited

    SonicWall Email Security version 10.0.9.x contains a vulnerability that allows a post-authenticated attacker to upload an arbitrary file to the remote host.

    CVSS7.2Published9 Apr 2021
  4. 0.6%

    Improperly Implemented Security Check vulnerability in the SonicWall Hosted Email Security leads to bypass of Capture ATP security service in the appliance.

    CVSS7.5Published29 Jul 2022
Precursor Intelligence

Running Hosted Email Security? We'll keep checking.

Looking flaws up one at a time doesn't scale. Tell us what you run once, and we tell you which flaws matter to you, in what order, and keep watching for new ones.

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  3. Ranked by real-world riskA 0 to 100 score, led by evidence criminals are using it.
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FAQ

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We track 4 published vulnerabilities listed under the name Hosted Email Security, across 0 versions. The most recent Hosted Email Security flaw added to the known-exploited list is CVE-2021-20021, on 3 November 2021.

3 are on the list of flaws known to be exploited. The most recently added are CVE-2021-20021, CVE-2021-20022 and CVE-2021-20023.

Create a Precursor Intelligence account and track Hosted Email Security. We match it against every published flaw, give each one a risk score from 0 to 100 and keep watching, so you hear about new ones as soon as we know, by email, in the app or by webhook.