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.

Published: 2015-04-24 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2015-3310 is rated Moderate Risk (49.3/100): CVSS Medium severity, with high exploitation likelihood (EPSS 5.44%, 92th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2015-3310

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-21 5.46% 5.44% -0.02%
2 2026-06-15 1.73% 5.46% +3.74%
3 2026-05-13 — 1.73% —

Full EPSS history (17 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-3310

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2015-3310

OS Trackers for CVE-2015-3310

vendor priority summary link
debian not yet assigned CVE-2015-3310 not yet assigned priority: Debian including 1 source packages (ppp), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2015-3310
gentoo normal CVE-2015-3310: 1 GLSA(s) (201701-50), 1 atom(s) (net-dialup/ppp); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2015-3310
redhat medium — https://access.redhat.com/security/cve/CVE-2015-3310
suse medium CVE-2015-3310 severity moderate: SUSE including 24 source package names (ppp-2.4.5.git-2.31.7, ppp-2.4.7-150000.5.10.3, …), 53 product×package rows across 42 product lines (SUSE Linux Enterprise Desktop 12 SP1, SUSE Linux Enterprise Desktop 12 SP2, … (42 product lines)): Fixed 53. https://www.suse.com/security/cve/CVE-2015-3310/
ubuntu medium CVE-2015-3310 medium priority: Ubuntu including 1 source packages (ppp), 6 status rows across 6 suites (lucid, precise, trusty, upstream, utopic, vivid): released 4, ignored 1, not-affected 1. https://ubuntu.com/security/CVE-2015-3310

Affected software / configurations for CVE-2015-3310

Vendor Product Version Raw CPE
canonical ubuntu_linux 12.04 cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*
canonical ubuntu_linux 14.04 cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
canonical ubuntu_linux 14.10 cpe:2.3:o:canonical:ubuntu_linux:14.10:*:*:*:*:*:*:*
debian debian_linux 7.0 cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
point-to-point_protocol_project point-to-point_protocol <= 2.4.6 cpe:2.3:a:point-to-point_protocol_project:point-to-point_protocol:*:*:*:*:*:*:*:*

References for CVE-2015-3310

cvelogic Threat Intelligence