How severe is CVE-2012-4445?

CVE-2012-4445 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2012-4445 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-4445?

CVE-2012-4445 primarily affects W1.fi Hostapd. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-4445?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2012-4445 published?

CVE-2012-4445 was published on 2012-10-10 and last updated on 2026-06-16.

CVE-2012-4445

CVE-2012-4445 is a medium-severity vulnerability in W1.fi Hostapd with a CVSS 2.0 base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 4% (90th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: W1.fi Hostapd
Published: 2012-10-10
Last modified: 2026-06-16

Description

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.

Frequently asked questions

What is CVE-2012-4445?: 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.
How severe is CVE-2012-4445?: CVE-2012-4445 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2012-4445 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-4445?: CVE-2012-4445 primarily affects W1.fi Hostapd. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-4445?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-4445 published?: CVE-2012-4445 was published on 2012-10-10 and last updated on 2026-06-16.

References

Affected products (13)

cpe:2.3:a:w1.fi:hostapd:0.6.0:*:*:*:*:*:*:*
cpe:2.3:a:w1.fi:hostapd:0.6.1:*:*:*:*:*:*:*
cpe:2.3:a:w1.fi:hostapd:0.6.2:*:*:*:*:*:*:*
cpe:2.3:a:w1.fi:hostapd:0.6.3:*:*:*:*:*:*:*
cpe:2.3:a:w1.fi:hostapd:0.6.4:*:*:*:*:*:*:*
cpe:2.3:a:w1.fi:hostapd:0.6.5:*:*:*:*:*:*:*
cpe:2.3:a:w1.fi:hostapd:0.6.6:*:*:*:*:*:*:*
cpe:2.3:a:w1.fi:hostapd:0.6.7:*:*:*:*:*:*:*
cpe:2.3:a:w1.fi:hostapd:0.7.0:*:*:*:*:*:*:*
cpe:2.3:a:w1.fi:hostapd:0.7.1:*:*:*:*:*:*:*
cpe:2.3:a:w1.fi:hostapd:0.7.2:*:*:*:*:*:*:*
cpe:2.3:a:w1.fi:hostapd:0.7.3:*:*:*:*:*:*:*
cpe:2.3:a:w1.fi:hostapd:1.0:*:*:*:*:*:*:*

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