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CVE-2015-3310

15
FAUCET Score

CVE-2015-3310 describes a buffer overflow vulnerability in the rc_mksid function of Paul's PPP Package (ppp) versions 2.4.6 and earlier, impacting various Canonical and Debian Linux distributions. This flaw allows remote attackers to trigger a denial of service by sending a crafted start accounting message to the RADIUS server when the pppd PID exceeds 65535. With a CVSS score of 4.3, this vulnerability has a network attack vector, medium attack complexity, and results in partial availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
12.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
14.10CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.10:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
<= 2.4.6CPE matchmatch criteria
cpe:2.3:a:point-to-point_protocol_project:point-to-point_protocol:*:*:*:*:*:*:*:*

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
5.44%
Probability of exploitation in next 30 days
EPSS Percentile
91.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0544 is in the 90th percentile among its peer group of 19,954 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

Vendor Patches (3)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: ppp
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: ppp
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: ppp

Vendor Advisories (3)

microsoft2025-Aug/CVE-2015-3310

Buffer overflow in the rc_mksid function in plugins/radius/util.c in Paul's PPP Package (ppp) 2.4.6 and earlier, when the PID for pppd is greater than 65535, allows remote attackers to cause a denial of service (crash) via a start accounting message to the RADIUS server.

Aug 12, 2025
redhatCVE-2015-3310Moderate

ppp: buffer overflow in radius plug-in's rc_mksid()

Apr 13, 2015
microsoft2015-Apr/CVE-2015-3310

Buffer overflow in the rc_mksid function in plugins/radius/util.c in Paul's PPP Package (ppp) 2.4.6 and earlier, when the PID for pppd is greater than 65535, allows remote attackers to cause a denial of service (crash) via a start accounting message to the RADIUS server.

Apr 2, 2015

References

advisories.mageia.org / MGASA-2015-0173.html
lists.opensuse.org / opensuse-updates/2015-11/msg00147.html
bugs.debian.org / cgi-bin/bugreport.cgi
security.gentoo.org / glsa/201701-50
debian.org / security/2015/dsa-3228
mandriva.com / security/advisories
securityfocus.com / bid/74163
ubuntu.com / usn/USN-2595-1