How severe is CVE-2025-34315?

CVE-2025-34315 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2025-34315 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-34315?

CVE-2025-34315 primarily affects Ipfire. In total, 16 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-34315?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-34315 have an EU (EUVD) identifier?

Yes. CVE-2025-34315 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-36521.

When was CVE-2025-34315 published?

CVE-2025-34315 was published on 2025-10-28 and last updated on 2026-06-17.

CVE-2025-34315

CVE-2025-34315 is a medium-severity vulnerability in Ipfire with a CVSS 3.x base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v4: 5.1
EPSS exploit prediction: 0% (36th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-36521
Weakness: CWE-79
Affected product: Ipfire
Published: 2025-10-28
Last modified: 2026-06-17

Description

IPFire versions prior to 2.29 (Core Update 198) contain a stored cross-site scripting (XSS) vulnerability that allows an authenticated attacker to inject arbitrary JavaScript code through the REMOTELOG_ADDR parameter when updating the remote syslog server address. When a user updates the Remote logging Syslog server, the application issues an HTTP POST request to /cgi-bin/logs.cgi/config.dat and the server address is provided in the REMOTELOG_ADDR parameter. The value of this parameter is stored and later rendered in the web interface without proper sanitation or encoding, allowing injected scripts to execute in the context of other users who view the affected configuration page.

Frequently asked questions

What is CVE-2025-34315?: IPFire versions prior to 2.29 (Core Update 198) contain a stored cross-site scripting (XSS) vulnerability that allows an authenticated attacker to inject arbitrary JavaScript code through the REMOTELOG_ADDR parameter when updating the remote syslog server address. When a user updates the Remote logging Syslog server, the application issues an HTTP POST request to /cgi-bin/logs.cgi/config.dat and the server address is provided in the REMOTELOG_ADDR parameter. The value of this parameter is stored and later rendered in the web interface without proper sanitation or encoding, allowing injected scripts to execute in the context of other users who view the affected configuration page.
How severe is CVE-2025-34315?: CVE-2025-34315 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2025-34315 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-34315?: CVE-2025-34315 primarily affects Ipfire. In total, 16 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-34315?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-34315 have an EU (EUVD) identifier?: Yes. CVE-2025-34315 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-36521.
When was CVE-2025-34315 published?: CVE-2025-34315 was published on 2025-10-28 and last updated on 2026-06-17.

References

Affected products (16)

cpe:2.3:a:ipfire:ipfire:*:*:*:*:*:*:*:*
cpe:2.3:a:ipfire:ipfire:2.29:core_update183:*:*:*:*:*:*
cpe:2.3:a:ipfire:ipfire:2.29:core_update184:*:*:*:*:*:*
cpe:2.3:a:ipfire:ipfire:2.29:core_update185:*:*:*:*:*:*
cpe:2.3:a:ipfire:ipfire:2.29:core_update186:*:*:*:*:*:*
cpe:2.3:a:ipfire:ipfire:2.29:core_update187:*:*:*:*:*:*
cpe:2.3:a:ipfire:ipfire:2.29:core_update188:*:*:*:*:*:*
cpe:2.3:a:ipfire:ipfire:2.29:core_update189:*:*:*:*:*:*
cpe:2.3:a:ipfire:ipfire:2.29:core_update190:*:*:*:*:*:*
cpe:2.3:a:ipfire:ipfire:2.29:core_update191:*:*:*:*:*:*
cpe:2.3:a:ipfire:ipfire:2.29:core_update192:*:*:*:*:*:*
cpe:2.3:a:ipfire:ipfire:2.29:core_update193:*:*:*:*:*:*
cpe:2.3:a:ipfire:ipfire:2.29:core_update194:*:*:*:*:*:*
cpe:2.3:a:ipfire:ipfire:2.29:core_update195:*:*:*:*:*:*
cpe:2.3:a:ipfire:ipfire:2.29:core_update196:*:*:*:*:*:*
cpe:2.3:a:ipfire:ipfire:2.29:core_update197:*:*:*:*:*:*

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