CVE-2025-50974: The Calamaris log exporter CGI (/cgi-bin/logs.cgi/calamaris.dat) in IPFire 2.29 does not properly sanitize use

This week

MEDIUM 6.5REMOTEDOWNGRADE

CVE-2025-50974 is a medium-severity flaw (CVSS 6.5) affecting ipfire. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Calamaris log exporter CGI (/cgi-bin/logs.cgi/calamaris.dat) in IPFire 2.29 does not properly sanitize user-supplied input before incorporating parameter values into a shell command. An unauthenticated remote attacker can inject arbitrary OS commands by embedding shell metacharacters in any of the following parameters BYTE_UNIT, DAY_BEGIN, DAY_END, HIST_LEVEL, MONTH_BEGIN, MONTH_END, NUM_CONTENT, NUM_DOMAINS, NUM_HOSTS, NUM_URLS, PERF_INTERVA

Why this priority

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	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 66%)
CISA exploited list	No
Weakness	CWE-78
Published	2025-08-26
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: ipfire

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

Am I affected?

Timeline

2025-08-26 17:15 UTCPublished CVE record published
2026-06-17 09:35 UTCUpdated Record last modified

ipfire ipfire DOWNGRADE

Affected: 2.29

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.29

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.29 (Debian / Ubuntu)

apt-cache madison ipfire sudo apt install ipfire=<VERSION_BEFORE_2.29> sudo apt-mark hold ipfire

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

dnf --showduplicates list ipfire sudo dnf downgrade ipfire-<VERSION_BEFORE_2.29> sudo dnf versionlock add ipfire

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-2025-50974?

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

Is CVE-2025-50974 being exploited?

CVE-2025-50974 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-2025-50974 affect?

CVE-2025-50974 affects ipfire. Severity is medium (CVSS 6.5). The Calamaris log exporter CGI (/cgi-bin/logs.cgi/calamaris.dat) in IPFire 2.29 does not properly sanitize user-supplied input before incorporating parameter values into a shell command. An unauthenticated remote attacker can inject arbitra

How urgent is CVE-2025-50974?

Priority 41/100. Public exploit reference; Remotely exploitable, no login, no user action

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References

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