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CVE-2015-4142

15
FAUCET Score

CVE-2015-4142 describes an integer underflow vulnerability in the WMM Action frame parser of hostapd and wpa_supplicant, affecting versions 0.5.5 through 2.4 and 0.7.0 through 2.4 respectively, when operating in AP mode. This flaw allows remote attackers to trigger a denial of service (crash) through a crafted frame, leading to an out-of-bounds read. With a CVSS score of 4.3 (AV:N/AC:M/Au:N/C:N/I:N/A:P), this vulnerability has a medium attack complexity and can be exploited without authentication, resulting in a partial availability impact. There is no known active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
0.7.0CPE matchmatch criteria
cpe:2.3:a:w1.fi:wpa_supplicant:0.7.0:*:*:*:*:*:*:*
0.7.1CPE matchmatch criteria
cpe:2.3:a:w1.fi:wpa_supplicant:0.7.1:*:*:*:*:*:*:*
0.7.2CPE matchmatch criteria
cpe:2.3:a:w1.fi:wpa_supplicant:0.7.2:*:*:*:*:*:*:*
0.7.3CPE matchmatch criteria
cpe:2.3:a:w1.fi:wpa_supplicant:0.7.3:*:*:*:*:*:*:*
1.0CPE matchmatch criteria
cpe:2.3:a:w1.fi:wpa_supplicant:1.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

AV:N/AC:M/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
4.20%
Probability of exploitation in next 30 days
EPSS Percentile
89.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0420 is in the 87th percentile among its peer group of 19,955 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Patch Available

Vendor Patches (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: wpa_supplicant-1:0.7.3-6.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: wpa_supplicant-1:2.0-17.ael7b_1
View patch

Vendor Advisories (1)

redhatCVE-2015-4142Low

hostapd: integer underflow in AP mode WMM Action frame processing

May 4, 2015

References

lists.fedoraproject.org / pipermail/package-announce/2015-November/171401.html
lists.fedoraproject.org / pipermail/package-announce/2015-November/172608.html
lists.fedoraproject.org / pipermail/package-announce/2015-November/172655.html
lists.opensuse.org / opensuse-updates/2015-06/msg00019.html
Third Party Advisory
rhn.redhat.com / errata/RHSA-2015-1090.html
Third Party Advisory
rhn.redhat.com / errata/RHSA-2015-1439.html
seclists.org / fulldisclosure/2022/May/34
security.gentoo.org / glsa/201606-17
Third Party Advisory
support.apple.com / kb/HT213258
w1.fi / security/2015-3/integer-underflow-in-ap-mode-wmm-action-frame.txt
Vendor Advisory
debian.org / security/2015/dsa-3397
openwall.com / lists/oss-security/2015/05/09/5
openwall.com / lists/oss-security/2015/05/31/6
securitytracker.com / id/1032625
ubuntu.com / usn/USN-2650-1