CVE-2025-48057
Icinga 2 certificate renewal might incorrectly renew an invalid certificate
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
Description
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.
Timeline
ID reserved
By GitHub_M
- 12 days later
· 12 days later
Published
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 4.0 | Critical9.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L |
| NVDNVD · Analyzed | 4.0 | Critical9.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
- EPSS (exploitation in 30 days)
- 0.46% · top 60% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.3.
Weakness
Affected products
References (6)
- https://github.com/Icinga/icinga2/security/advisories/GHSA-7vcf-f5v9-3wr6 (opens in a new tab)x_refsource_CONFIRM
- https://github.com/Icinga/icinga2/commit/34c93a2542bbe4e9886d15bc17ec929ead1aa152 (opens in a new tab)x_refsource_MISC
- https://github.com/Icinga/icinga2/commit/4023128be42b18a011dda71ddee9ca79955b89cb (opens in a new tab)x_refsource_MISC
- https://github.com/Icinga/icinga2/commit/60f75f4a3d5cbb234eb3694ba7e9076a1a5b8776 (opens in a new tab)x_refsource_MISC
- https://github.com/Icinga/icinga2/commit/9ad5683aab9eb392c6737ff46c830a945c9e240f (opens in a new tab)x_refsource_MISC
- https://github.com/Icinga/icinga2/commit/9b2c05d0cc09210bdeade77cf9a73859250fc48d (opens in a new tab)x_refsource_MISC
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2025-48057)Record last updated .