How severe is CVE-2015-5380?

CVE-2015-5380 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2015-5380 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-5380?

CVE-2015-5380 primarily affects Google V8. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-5380?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2015-5380 published?

CVE-2015-5380 was published on 2015-07-09 and last updated on 2026-06-17.

CVE-2015-5380

CVE-2015-5380 is a high-severity vulnerability in Google V8 with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Google V8
Published: 2015-07-09
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2015-5380?: CVE-2015-5380 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2015-5380 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-5380?: CVE-2015-5380 primarily affects Google V8. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-5380?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2015-5380 published?: CVE-2015-5380 was published on 2015-07-09 and last updated on 2026-06-17.

References

Affected products (12)

cpe:2.3:a:google:v8:-:*:*:*:*:*:*:*
cpe:2.3:a:iojs:io.js:*:*:*:*:*:*:*:*
cpe:2.3:a:iojs:io.js:2.0.0:*:*:*:*:*:*:*
cpe:2.3:a:iojs:io.js:2.0.1:*:*:*:*:*:*:*
cpe:2.3:a:iojs:io.js:2.0.2:*:*:*:*:*:*:*
cpe:2.3:a:iojs:io.js:2.1.0:*:*:*:*:*:*:*
cpe:2.3:a:iojs:io.js:2.2.0:*:*:*:*:*:*:*
cpe:2.3:a:iojs:io.js:2.2.1:*:*:*:*:*:*:*
cpe:2.3:a:iojs:io.js:2.3.0:*:*:*:*:*:*:*
cpe:2.3:a:iojs:io.js:2.3.1:*:*:*:*:*:*:*
cpe:2.3:a:iojs:io.js:2.3.2:*:*:*:*:*:*:*
cpe:2.3:a:nodejs:node.js:*:*:*:*:*:*:*:*

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