CVE-2020-7980: Intellian Aptus Web 1.24 allows remote attackers to execute arbitrary OS commands via the Q field within JSON

Q: How do I fix CVE-2020-7980?

aptus web: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Q: Is CVE-2020-7980 being exploited?

CVE-2020-7980 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-2020-7980 affect?

CVE-2020-7980 affects aptus web. Severity is critical (CVSS 9.8). Intellian Aptus Web 1.24 allows remote attackers to execute arbitrary OS commands via the Q field within JSON data to the cgi-bin/libagent.cgi URI. NOTE: a valid sid cookie for a login to the intellian default account might be needed.

Q: How urgent is CVE-2020-7980?

Priority 69/100. Critical severity; EPSS top 1%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2020-7980 is a critical-severity flaw (CVSS 9.8) affecting aptus web. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Intellian Aptus Web 1.24 allows remote attackers to execute arbitrary OS commands via the Q field within JSON data to the cgi-bin/libagent.cgi URI. NOTE: a valid sid cookie for a login to the intellian default account might be needed.

Why this priority

Critical severity
EPSS top 1%: very likely to be exploited
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	83.1% (top 1%)
CISA exploited list	No
Weakness	CWE-78
Published	2020-01-25
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: intelliantech

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

Am I affected?

Timeline

2020-01-25 19:15 UTCPublished CVE record published
2026-06-17 03:25 UTCUpdated Record last modified

intelliantech aptus web DOWNGRADE

Affected: 1.24

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.24

1. Check installed version

apt-cache policy aptus-web || rpm -q aptus-web || aptus-web --version

2. No fixed release: DOWNGRADE to a release before 1.24 (Debian / Ubuntu)

apt-cache madison aptus-web sudo apt install aptus-web=<VERSION_BEFORE_1.24> sudo apt-mark hold aptus-web

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list aptus-web sudo dnf downgrade aptus-web-<VERSION_BEFORE_1.24> sudo dnf versionlock add aptus-web

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Exact fixes by distribution

A distro patch exists: prefer upgrading over downgrading.

Fedora 46 · root · FIXED · 6.40.04-7.fc46 · FEDORA-2026-7329868400 · source

sudo dnf upgrade --advisory=FEDORA-2026-7329868400

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

GitHub PoC: Xh4H/Satellian-CVE-2020-7980 (73 stars)
Write-up: sku11army.blogspot.com/2020/01/intellian-aptus-web-rce-intellian.html
Exploit-DB: Satellian 1.12 - Remote Code Execution
Nuclei scan template: Satellian Intellian Aptus Web <= 1.24 - Remote Command Execution

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-2020-7980?

aptus web: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2020-7980 being exploited?

CVE-2020-7980 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-2020-7980 affect?

CVE-2020-7980 affects aptus web. Severity is critical (CVSS 9.8). Intellian Aptus Web 1.24 allows remote attackers to execute arbitrary OS commands via the Q field within JSON data to the cgi-bin/libagent.cgi URI. NOTE: a valid sid cookie for a login to the intellian default account might be needed.

How urgent is CVE-2020-7980?

Priority 69/100. Critical severity; EPSS top 1%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

References

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