CVE-2025-480579.3CriticalCWE-296

CVE-2025-48057: Icinga 2 certificate renewal might incorrectly renew an invalid certificate

Icinga · icinga2

Affected: icinga2 · Exploitation: unlikely (under 1%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

0.5%probability of exploitation in the next 30 days

40th percentile

050100

Higher than 40% of scored CVEs

9.3CriticalCVSS 4.0

LowMediumHighCrit.

DescriptionCVE.org

Icinga 2 is a monitoring system which checks the availability of network resources, notifies users of outages, and generates performance data for reporting. Prior to versions 2.12.12, 2.13.12, and 2.14.6, the VerifyCertificate() function can be tricked into incorrectly treating certificates as valid. This allows an attacker to send a malicious certificate request that is then treated as a renewal of an already existing certificate, resulting in the attacker obtaining a valid certificate that can be used to impersonate trusted nodes. This only occurs when Icinga 2 is built with OpenSSL older than version 1.1.0. This issue has been patched in versions 2.12.12, 2.13.12, and 2.14.6.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

Icinga · icinga2>= 2.14.0, < 2.14.6; >= 2.13.0, < 2.13.12; < 2.12.12

On the Atlas

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Open the Atlas

Exploitation: Unlikely (under 1%). EPSS under 1%, or no score yet.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Improper Following of a Certificate's Chain of Trust · Cryptography
Vendor: Icinga
Published: May 2025
Band: Unlikely (under 1%), May 2025

CoverageNo articles yet

No CyberSIXT article names CVE-2025-48057 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.