CVE-2014-9748

The uv_rwlock_t fallback implementation for Windows XP and Server 2003 in libuv before 1.7.4 does not properly prevent threads from releasing the locks of other threads, which allows attackers to cause a denial of service (deadlock) or possibly have unspecified other impact by leveraging a race condition.

Published: 2020-02-11 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2014-9748 is rated Moderate Risk (63.2/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.47%). EPSS rose +1.99% over the last day, indicating growing attacker interest. Review affected assets and schedule 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-2014-9748

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 0.48% 2.47% +1.99%
2 2025-12-28 0.40% 0.48% +0.08%
3 2025-12-27 — 0.40% —

Full EPSS history (13 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2014-9748

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.1 3.1 HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.2 5.9 [email protected]
6.8 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/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:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 6.4 [email protected]

Weakness enumeration for CVE-2014-9748

OS Trackers for CVE-2014-9748

vendor priority summary link
debian unimportant CVE-2014-9748 unimportant priority: Debian including 1 source packages (nodejs), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2014-9748
ubuntu medium CVE-2014-9748 medium priority: Ubuntu including 2 source packages (libuv, nodejs), 10 status rows across 5 suites (precise, trusty, upstream, wily, xenial): not-affected 6, DNE 2, released 2. https://ubuntu.com/security/CVE-2014-9748

Affected software / configurations for CVE-2014-9748

Vendor Product Version Raw CPE
libuv libuv < 1.7.4 cpe:2.3:a:libuv:libuv:*:*:*:*:*:*:*:*
nodejs node.js >= 0.10.0, < 0.10.46 cpe:2.3:a:nodejs:node.js:*:*:*:*:*:*:*:*
nodejs node.js >= 0.12.0, < 0.12.15 cpe:2.3:a:nodejs:node.js:*:*:*:*:*:*:*:*

References for CVE-2014-9748

cvelogic Threat Intelligence