CVE-2021-32964: The AGG Software Web Server version 4.0.40.1014 and prior is vulnerable to a path traversal attack, which may

Q: How do I fix CVE-2021-32964?

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

Q: Is CVE-2021-32964 being exploited?

CVE-2021-32964 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-2021-32964 affect?

CVE-2021-32964 affects webserver. Severity is medium (CVSS 6.5). The AGG Software Web Server version 4.0.40.1014 and prior is vulnerable to a path traversal attack, which may allow an attacker to read arbitrary files from the file system.

Q: How urgent is CVE-2021-32964?

Priority 42/100. Remotely exploitable, no login, no user action

This month

MEDIUM 6.5REMOTEUPGRADE

CVE-2021-32964 is a medium-severity flaw (CVSS 6.5) 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 a path traversal attack, which may allow an attacker to read arbitrary files from the file system.

Why this priority

Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.8% (top 42%)
CISA exploited list	No
Weakness	CWE-23, CWE-22
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-2021-32964?

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

Is CVE-2021-32964 being exploited?

CVE-2021-32964 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-2021-32964 affect?

CVE-2021-32964 affects webserver. Severity is medium (CVSS 6.5). The AGG Software Web Server version 4.0.40.1014 and prior is vulnerable to a path traversal attack, which may allow an attacker to read arbitrary files from the file system.

How urgent is CVE-2021-32964?

Priority 42/100. Remotely exploitable, no login, no user action

Related CVEs

CVE-2025-3847 HIGH 7.3 MITIGATE A vulnerability classified as critical has been found in markparticle WebServer up to 1.0
CVE-2025-3846 HIGH 7.3 MITIGATE A vulnerability was found in markparticle WebServer up to 1.0
CVE-2025-3845 HIGH 7.3 MITIGATE A vulnerability was found in markparticle WebServer up to 1.0
CVE-2024-11215 MEDIUM 6.5 DOWNGRADE Absolute path traversal (incorrect restriction of a path to a restricted directory) vulnerability in the EasyP
CVE-2023-53944 MEDIUM 6.5 DOWNGRADE EasyPHP Webserver 14.1 contains a path traversal vulnerability that allows remote users with low privileges to

References

← Back to latest CVEs