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CVE-2015-5314

20
FAUCET Score

CVE-2015-5314 is a denial-of-service vulnerability affecting hostapd 2.x before 2.6, including Debian and w1.fi distributions. The flaw lies in the eap_pwd_process function, which fails to validate reassembly buffer size for EAP-pwd messages, allowing remote attackers to terminate the process via a large final fragment. Rated Medium (CVSS 5.9), this vulnerability has a network attack vector and high attack complexity, leading to a denial of service. There is no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed in CISA's KEV catalog.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.0, < 2.6CPE matchmatch criteria
cpe:2.3:a:w1.fi:wpa_supplicant:*:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.9MEDIUM

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.30%
Probability of exploitation in next 30 days
EPSS Percentile
81.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0230 is in the 70th percentile among its peer group of 19,958 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

debian.org / security/2015/dsa-3397
Third Party Advisory
w1.fi / security/2015-7/eap-pwd-missing-last-fragment-length-validation.txt
MitigationVendor Advisory
openwall.com / lists/oss-security/2015/11/10/10
Mailing ListMitigationPatchThird Party Advisory
ubuntu.com / usn/USN-2808-1
Broken Link