CVE-2021-32962: The AGG Software Web Server version 4.0.40.1014 and prior is vulnerable to cross-site scripting, which may all

Q: How do I fix CVE-2021-32962?

webserver: upgrade to newer than 4.0.40.1014. Exact commands for each OS are on this page.

Q: Is CVE-2021-32962 being exploited?

CVE-2021-32962 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2021-32962 affect?

CVE-2021-32962 affects webserver. Severity is high (CVSS 8.2). The AGG Software Web Server version 4.0.40.1014 and prior is vulnerable to cross-site scripting, which may allow an attacker to remotely execute arbitrary code.

Q: How urgent is CVE-2021-32962?

Priority 48/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 8.2REMOTEUPGRADE

CVE-2021-32962 is a high-severity flaw (CVSS 8.2) affecting webserver. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The AGG Software Web Server version 4.0.40.1014 and prior is vulnerable to cross-site scripting, which may allow an attacker to remotely execute arbitrary code.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	8.2 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.8% (top 43%)
CISA exploited list	No
Weakness	CWE-79
Published	2022-05-24
Last modified	2026-06-17

Publisher (CNA): ICS-CERT · Vendor: aggsoft

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-05-24 18:15 UTCPublished CVE record published
2026-06-17 03:53 UTCUpdated Record last modified

aggsoft webserver UPGRADE

Affected: <= 4.0.40.1014

Fixed in: newer than 4.0.40.1014

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy webserver || rpm -q webserver || webserver --version

2. UPGRADE to newer than 4.0.40.1014 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade webserver

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade webserver

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-32962?

webserver: upgrade to newer than 4.0.40.1014. Exact commands for each OS are on this page.

Is CVE-2021-32962 being exploited?

CVE-2021-32962 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-32962 affect?

CVE-2021-32962 affects webserver. Severity is high (CVSS 8.2). The AGG Software Web Server version 4.0.40.1014 and prior is vulnerable to cross-site scripting, which may allow an attacker to remotely execute arbitrary code.

How urgent is CVE-2021-32962?

Priority 48/100. High severity; Remotely exploitable, no login, no user action

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References

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