HOMEVULNERABILITIESCVE-2025-48057
CRITICAL

CVE-2025-48057

CWE-296Published: May 27, 2025· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2025-48057 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

icinga1 product(s)
icinga
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/Icinga/icinga2/commit/34c93a2542bbe4e9886d15bc17ec929ead1aa152
PATCHhttps://github.com/Icinga/icinga2/commit/4023128be42b18a011dda71ddee9ca79955b89cb
PATCHhttps://github.com/Icinga/icinga2/commit/60f75f4a3d5cbb234eb3694ba7e9076a1a5b8776
PATCHhttps://github.com/Icinga/icinga2/commit/9ad5683aab9eb392c6737ff46c830a945c9e240f
PATCHhttps://github.com/Icinga/icinga2/commit/9b2c05d0cc09210bdeade77cf9a73859250fc48d
PATCHhttps://github.com/Icinga/icinga2/security/advisories/GHSA-7vcf-f5v9-3wr6

All References (6)

→
https://github.com/Icinga/icinga2/commit/34c93a2542bbe4e9886d15bc17ec929ead1aa152Patch
→
https://github.com/Icinga/icinga2/commit/4023128be42b18a011dda71ddee9ca79955b89cbPatch
→
https://github.com/Icinga/icinga2/commit/60f75f4a3d5cbb234eb3694ba7e9076a1a5b8776Patch
→
https://github.com/Icinga/icinga2/commit/9ad5683aab9eb392c6737ff46c830a945c9e240fPatch
→
https://github.com/Icinga/icinga2/commit/9b2c05d0cc09210bdeade77cf9a73859250fc48dPatch
→
https://github.com/Icinga/icinga2/security/advisories/GHSA-7vcf-f5v9-3wr6Patch · Vendor Advisory

Quick Facts

CVE IDCVE-2025-48057
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-296
CISA KEVNo
Affected1 vendor(s)
PublishedMay 27, 2025

Related CVEs (CWE-296)

CVE-2026-24066
8.4
CVE-2025-1146
8.1
CVE-2021-23162
8.1
CVE-2019-3762
7.5
CVE-2021-1566
7.4
CVE-2021-23155
6.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2025-48057 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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