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CVE-2026-27171

🗓️ 18 Feb 2026 02:36:19Reported by mitreType 
cve
 cve
🔗 web.nvd.nist.gov👁 440 Views

CVE-2026-27171: zlib before version 1.3.2 may cause CPU exhaustion via crc32_combine64 and crc32_combine_gen64 because of an infinite loop.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
ibm
IBM Security Bulletins
Security Bulletin: IBM i is Affected by an Improper Validation Vulnerability in zlib [CVE-2026-27171]
1 Oct 202620:50
–ibm
ibm
IBM Security Bulletins
Security Bulletin: IBM WinCollect Agent is vulnerable to using components with known vulnerabilities
6 Jul 202613:49
–ibm
ibm
IBM Security Bulletins
Security Bulletin: Multiple vulnerabilities in zlib in IBM Content Navigator Mobile for iOS
13 Nov 202611:48
–ibm
ibm
IBM Security Bulletins
Security Bulletin: IBM MQ for HPE NonStop is vulnerable to an issue in zlib (CVE-2026-27171)
1 Jul 202621:59
–ibm
ibm
IBM Security Bulletins
Security Bulletin: Due to the use of zlib, IBM EntireX is vulnerable to Improper Validation of Specified Quantity in Input vulnerabilities (CVE-2026-3381, CVE-2026-27171).
19 Jun 202607:52
–ibm
ibm
IBM Security Bulletins
Security Bulletin: IBM Spectrum Control is vulnerable to weaknesses related to Zlib (CVE-2026-3381)
21 Aug 202612:02
–ibm
ibm
IBM Security Bulletins
Security Bulletin: A vulnerability in zlib affects IBM License Metric Tool v9 scanner (CIT)
26 Mar 202611:43
–ibm
ibm
IBM Security Bulletins
Security Bulletin: Vulnerabilities Addressed in IBM Tivoli Network Manager IP Edition (ITNM) version 4.2 Fix Pack 24 (4.2.0.24)
9 Apr 202610:21
–ibm
ibm
IBM Security Bulletins
Security Bulletin: AIX is vulnerable to denial of service due to zlib (CVE-2026-27171)
23 Jul 202613:06
–ibm
ibm
IBM Security Bulletins
Security Bulletin: IBM Quantum Safe Remediator is affected by multiple vulnerabilities
5 May 202615:14
–ibm
Rows per page
NVD
Vulners
CNA
Node
zlibzlibRange1.2.12–1.3.2
[
  {
    "defaultStatus": "unaffected",
    "product": "zlib",
    "vendor": "zlib",
    "versions": [
      {
        "lessThan": "1.3.2",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      }
    ]
  }
]

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17 Jun 2026 10:26Current
6.3Medium risk
Vulners AI Score6.3
CVSS 3.12.9 - 5.5
EPSS0.00244
SSVC
440