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CVE-2009-4409

🗓️ 09 Jan 2026 11:48:32Reported by redhat.comType 
redhatcve
 redhatcve
🔗 access.redhat.com👁 2 Views

CVE-2009-4409 allows replay attacks on CHAP and MS-CHAP-V2 authentication in PPP Access Concentrator.

Related
Refs
ReporterTitlePublishedViews
Family
CVE
CVE-2009-4409
23 Dec 200921:00
cve
Cvelist
CVE-2009-4409
23 Dec 200921:00
cvelist
EUVD
EUVD-2009-4376
7 Oct 202500:30
euvd
Japan Vulnerability Notes
JVN#49602378 SEIL/B1 authentication issue
9 Dec 200900:00
jvn
Japan Vulnerability Notes
SEIL/B1 authentication issue
9 Dec 200910:38
jvn
NVD
CVE-2009-4409
23 Dec 200921:30
nvd
Prion
Authentication flaw
23 Dec 200921:30
prion

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09 Jan 2026 11:48Current
7.4High risk
Vulners AI Score7.4
CVSS 22.6
EPSS0.0029
2