CVE-2015-5380

The Utf8DecoderBase::WriteUtf16Slow function in unicode-decoder.cc in Google V8, as used in Node.js before 0.12.6, io.js before 1.8.3 and 2.x before 2.3.3, and other products, does not verify that there is memory available for a UTF-16 surrogate pair, which allows remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via a crafted byte sequence.

Published: 2015-07-09 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2015-5380 is rated Moderate Risk (62.3/100): CVSS High severity, with medium exploitation likelihood (EPSS 3.00%). EPSS rose +2.38% 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-2015-5380

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 0.62% 3.00% +2.38%
2 2026-03-08 0.76% 0.62% -0.14%
3 2025-05-25 — 0.76% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-5380

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/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:L)
Exploitation conditions are straightforward and predictable.
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.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2015-5380

OS Trackers for CVE-2015-5380

vendor priority summary link
debian unimportant CVE-2015-5380 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-2015-5380
redhat medium — https://access.redhat.com/security/cve/CVE-2015-5380
ubuntu medium CVE-2015-5380 medium priority: Ubuntu including 1 source packages (nodejs), 11 status rows across 11 suites (artful, bionic, precise, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): ignored 7, not-affected 4. https://ubuntu.com/security/CVE-2015-5380

Affected software / configurations for CVE-2015-5380

Vendor Product Version Raw CPE
google v8 — cpe:2.3:a:google:v8:-:*:*:*:*:*:*:*
iojs io.js <= 1.8.2 cpe:2.3:a:iojs:io.js:*:*:*:*:*:*:*:*
iojs io.js 2.0.0 cpe:2.3:a:iojs:io.js:2.0.0:*:*:*:*:*:*:*
iojs io.js 2.0.1 cpe:2.3:a:iojs:io.js:2.0.1:*:*:*:*:*:*:*
iojs io.js 2.0.2 cpe:2.3:a:iojs:io.js:2.0.2:*:*:*:*:*:*:*
iojs io.js 2.1.0 cpe:2.3:a:iojs:io.js:2.1.0:*:*:*:*:*:*:*
iojs io.js 2.2.0 cpe:2.3:a:iojs:io.js:2.2.0:*:*:*:*:*:*:*
iojs io.js 2.2.1 cpe:2.3:a:iojs:io.js:2.2.1:*:*:*:*:*:*:*
iojs io.js 2.3.0 cpe:2.3:a:iojs:io.js:2.3.0:*:*:*:*:*:*:*
iojs io.js 2.3.1 cpe:2.3:a:iojs:io.js:2.3.1:*:*:*:*:*:*:*
iojs io.js 2.3.2 cpe:2.3:a:iojs:io.js:2.3.2:*:*:*:*:*:*:*
nodejs node.js <= 0.12.5 cpe:2.3:a:nodejs:node.js:*:*:*:*:*:*:*:*

References for CVE-2015-5380

cvelogic Threat Intelligence