CVE-2022-39983: File upload vulnerability in Pro Gamma Instant Developer RD3 22.5 r23, r30, and possibly earlier versions, all

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2022-39983 is a critical-severity flaw (CVSS 9.8) affecting rd3. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

File upload vulnerability in Pro Gamma Instant Developer RD3 22.5 r23, r30, and possibly earlier versions, allows attackers to execute arbitrary code.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.4% (top 28%)
CISA exploited list	No
Weakness	CWE-434
Published	2023-02-22
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: instantdeveloper

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

Am I affected?

Timeline

2023-02-22 22:15 UTCPublished CVE record published
2026-06-17 04:58 UTCUpdated Record last modified

instantdeveloper rd3 DOWNGRADE

Affected: 22.0.8500

Fixed in: no fixed release known

Safe to downgrade to: a release before 22.0.8500

1. Check installed version

apt-cache policy rd3 || rpm -q rd3 || rd3 --version

2. No fixed release: DOWNGRADE to a release before 22.0.8500 (Debian / Ubuntu)

apt-cache madison rd3 sudo apt install rd3=<VERSION_BEFORE_22.0.8500> sudo apt-mark hold rd3

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

dnf --showduplicates list rd3 sudo dnf downgrade rd3-<VERSION_BEFORE_22.0.8500> sudo dnf versionlock add rd3

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.

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-2022-39983?

rd3: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2022-39983 being exploited?

CVE-2022-39983 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-2022-39983 affect?

CVE-2022-39983 affects rd3. Severity is critical (CVSS 9.8). File upload vulnerability in Pro Gamma Instant Developer RD3 22.5 r23, r30, and possibly earlier versions, allows attackers to execute arbitrary code.

How urgent is CVE-2022-39983?

Priority 62/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

References

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