CVE-2015-0278

libuv before 0.10.34 does not properly drop group privileges, which allows context-dependent attackers to gain privileges via unspecified vectors.

Published: 2015-05-18 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2015-0278 is rated High Risk (72/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 3.24%). Core evidence: EPSS rose +1.66% over the last day, indicating growing attacker interest. Mandatory action: 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-2015-0278

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 2026-06-15 1.59% 3.24% +1.66%
2 2025-08-25 1.31% 1.59% +0.28%
3 2025-08-24 1.31%

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-0278

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
10.0 2.0 HIGH
AV:N/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
10.0 10.0 [email protected]

Weakness enumeration for CVE-2015-0278

OS Trackers for CVE-2015-0278

vendor priority summary link
gentoo normal CVE-2015-0278: 1 GLSA(s) (201611-10), 1 atom(s) (dev-libs/libuv); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2015-0278
redhat medium https://access.redhat.com/security/cve/CVE-2015-0278
ubuntu low CVE-2015-0278 low priority: Ubuntu including 1 source packages (libuv), 14 status rows across 14 suites (artful, bionic, cosmic, disco, lucid, precise, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): not-affected 7, DNE 5, ignored 1, needs-triage 1. https://ubuntu.com/security/CVE-2015-0278

Affected software / configurations for CVE-2015-0278

Vendor Product Version Raw CPE
fedoraproject fedora 21 cpe:2.3:o:fedoraproject:fedora:21:*:*:*:*:*:*:*
libuv_project libuv <= 0.10.33 cpe:2.3:a:libuv_project:libuv:*:*:*:*:*:*:*:*
nodejs node.js < 0.10.37 cpe:2.3:a:nodejs:node.js:*:*:*:*:*:*:*:*

References for CVE-2015-0278

cvelogic Threat Intelligence