CVE-2024-55399: 4C Strategies Exonaut before v21.6.2.1-1 was discovered to contain a Server-Side Request Forgery (SSRF).

Q: How do I fix CVE-2024-55399?

exonaut: upgrade to 21.6.2.1-1. Exact commands for each OS are on this page.

Q: Is CVE-2024-55399 being exploited?

CVE-2024-55399 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-2024-55399 affect?

CVE-2024-55399 affects exonaut. Severity is medium (CVSS 6.5). 4C Strategies Exonaut before v21.6.2.1-1 was discovered to contain a Server-Side Request Forgery (SSRF).

Q: How urgent is CVE-2024-55399?

Priority 33/100. Remotely exploitable, no login, no user action

Routine

MEDIUM 6.5REMOTEUPGRADE

CVE-2024-55399 is a medium-severity flaw (CVSS 6.5) affecting exonaut. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

4C Strategies Exonaut before v21.6.2.1-1 was discovered to contain a Server-Side Request Forgery (SSRF).

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	0.3% (top 79%)
CISA exploited list	No
Weakness	CWE-918
Published	2025-08-06
Last modified	2026-07-05

Publisher (CNA): MITRE · Vendor: 4cstrategies

Last updated 2026-07-05 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-08-06 21:15 UTCPublished CVE record published
2026-07-05 01:21 UTCUpdated Record last modified

4cstrategies exonaut UPGRADE

Affected: < 21.6.2.1-1 · 22.0

Fixed in: 21.6.2.1-1

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 21.6.2.1-1 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade exonaut

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-2024-55399?

exonaut: upgrade to 21.6.2.1-1. Exact commands for each OS are on this page.

Is CVE-2024-55399 being exploited?

CVE-2024-55399 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-2024-55399 affect?

CVE-2024-55399 affects exonaut. Severity is medium (CVSS 6.5). 4C Strategies Exonaut before v21.6.2.1-1 was discovered to contain a Server-Side Request Forgery (SSRF).

How urgent is CVE-2024-55399?

Priority 33/100. Remotely exploitable, no login, no user action

Related CVEs

CVE-2024-55402 MEDIUM 5.3 UPGRADE 4C Strategies Exonaut before v22.4 was discovered to contain an access control issue.
CVE-2024-55401 MEDIUM 6.5 UPGRADE An issue in 4C Strategies Exonaut before v22.4 allows attackers to execute a directory traversal.
CVE-2024-55398 MEDIUM 6.5 UPGRADE 4C Strategies Exonaut before v22.4 was discovered to contain insecure permissions.
CVE-2025-46660 MEDIUM 5.3 DOWNGRADE An issue was discovered in 4C Strategies Exonaut 21.6
CVE-2025-46659 HIGH 7.5 DOWNGRADE An issue was discovered in ExonautWeb in 4C Strategies Exonaut 21.6

References

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