CVE-2025-34311: IPFire versions prior to 2.29 (Core Update 198) contain a command injection vulnerability that allows an authe

Q: How do I fix CVE-2025-34311?

ipfire: upgrade to 2.29. Exact commands for each OS are on this page.

Q: Is CVE-2025-34311 being exploited?

CVE-2025-34311 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-2025-34311 affect?

CVE-2025-34311 affects ipfire. Severity is high (CVSS 8.8). IPFire versions prior to 2.29 (Core Update 198) contain a command injection vulnerability that allows an authenticated attacker to execute arbitrary commands as the user 'nobody' via multiple parameters when creating a Proxy report. When a

Q: How urgent is CVE-2025-34311?

Priority 55/100. High severity; EPSS top 4%: very likely to be exploited

This week

HIGH 8.8UPGRADE

CVE-2025-34311 is a high-severity flaw (CVSS 8.8) affecting ipfire. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

IPFire versions prior to 2.29 (Core Update 198) contain a command injection vulnerability that allows an authenticated attacker to execute arbitrary commands as the user 'nobody' via multiple parameters when creating a Proxy report. When a user creates a Proxy report the application issues an HTTP POST to /cgi-bin/logs.cgi/calamaris.dat and reads the values of DAY_BEGIN, MONTH_BEGIN, YEAR_BEGIN, DAY_END, MONTH_END, YEAR_END, NUM_DOMAINS, PERF_INT

Why this priority

High severity
EPSS top 4%: very likely to be exploited

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	13.5% (top 4%)
CISA exploited list	No
Weakness	CWE-78
Published	2025-10-28
Last modified	2026-09-26

Publisher (CNA): VulnCheck · Vendor: ipfire

Last updated 2026-09-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-10-28 15:16 UTCPublished CVE record published
2026-09-26 00:10 UTCUpdated Record last modified

ipfire ipfire UPGRADE

Affected: < 2.29 · 2.29 core_update183 · 2.29 core_update184 · 2.29 core_update185 · 2.29 core_update186 · 2.29 core_update187 · 2.29 core_update188 · 2.29 core_update189

Fixed in: 2.29

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 2.29 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade ipfire

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Exact fixes by distribution

Fedora ELN · openldap · FIXED · 2.6.16-1.eln159 · FEDORA-2026-4b30c86326 · source

sudo dnf upgrade --advisory=FEDORA-2026-4b30c86326

Fedora 46 · php-pecl-yac · FIXED · 3.0.1-2.fc46 · FEDORA-2026-5f43289aa2 · source

sudo dnf upgrade --advisory=FEDORA-2026-5f43289aa2

Public exploits and detection

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

Write-up: bugzilla.ipfire.org/show_bug.cgi?id=13886

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-2025-34311?

ipfire: upgrade to 2.29. Exact commands for each OS are on this page.

Is CVE-2025-34311 being exploited?

CVE-2025-34311 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-2025-34311 affect?

CVE-2025-34311 affects ipfire. Severity is high (CVSS 8.8). IPFire versions prior to 2.29 (Core Update 198) contain a command injection vulnerability that allows an authenticated attacker to execute arbitrary commands as the user 'nobody' via multiple parameters when creating a Proxy report. When a

How urgent is CVE-2025-34311?

Priority 55/100. High severity; EPSS top 4%: very likely to be exploited

Related CVEs

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References

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