Is CVE-2015-8857 in the CISA KEV catalog?

No. CVE-2015-8857 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2015-8857?

CVE-2015-8857 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2015-8857?

CVE-2015-8857 has an EPSS score of 3.56% (88th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2015-8857?

Upgrade uglifyjs on debian 11 to 2.7.4-1 or later.

CVE & CISA-KEV Catalog

CVE-2015-8857

CRITICALEPSS 88th pctl

9.8

CVSS v3

NVD

Description

The uglify-js package before 2.4.24 for Node.js does not properly account for non-boolean values when rewriting boolean expressions, which might allow attackers to bypass security mechanisms or possibly have unspecified other impact by leveraging improperly rewritten Javascript.

CWE-254

How to fix

Remediation Available

uglifyjsDebian

Fixed in:2.7.4-1CVE-2015-8857

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

3.56%probability of exploitation in 30 days

88thpercentile

Elevated risk: more likely to be exploited than 88% of all known CVEs.

References

Patch1

nodesecurity.io

Third-Party Advisory2

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-13.