CVE-2012-4445

Heap-based buffer overflow in the eap_server_tls_process_fragment function in...

4.3 MediumFix available

Heap-based buffer overflow in the eap_server_tls_process_fragment function in eap_server_tls_common.c in the EAP authentication server in hostapd 0.6 through 1.0 allows remote attackers to cause a denial of service (crash or abort) via a small "TLS Message Length" value in an EAP-TLS message with the "More Fragments" flag set.

Exploit likelihood

4.22%Up 2.0 points since Feb 4, 2022

What each source reports

NVD Score used 4.3

Record: CVE-2012-4445
CVSS 2.0: 4.3 MediumAV:N/AC:M/Au:N/C:N/I:N/A:P
Weakness: CWE-119
Updated: 2026-11-02

CVE List No score

Record: CVE-2012-4445
Updated: 2026-11-02

EUVDEUVD-2012-4378 No score

Record: EUVD-2012-4378
Updated: 2026-11-03

GitHub AdvisoriesGHSA-2hh4-7m9c-h6f2 No score

Heap-based buffer overflow in the eap_server_tls_process_fragment function in...

Record: GHSA-2hh4-7m9c-h6f2
Weakness: CWE-119
Updated: 2026-11-02

OSV No score

Record: CVE-2012-4445
Updated: 2026-11-02

OSVDEBIAN-CVE-2012-4445 No score

Record: DEBIAN-CVE-2012-4445
Updated: 2026-11-02

Affected products

w1.fi hostapd

Affected packages

Affected packages
Package	Affected	Fixed
`wpa` Debian:12	before 1.0-3	1.0-3
`wpa` Debian:13	before 1.0-3	1.0-3
`wpa` Debian:14	before 1.0-3	1.0-3
`hostapd` Debian:6.0	before 1:0.6.10-2+squeeze1, plus listed versions 1:0.6.10-2	1:0.6.10-2+squeeze1

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2012-4445 is a medium vulnerability (CVSS 4.3) in W1.fi Hostapd, published October 8, 2012. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 4.22%, the 91st percentile. Fixed in wpa 1.0-3.

References

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