Is CVE-2015-8920 in the CISA KEV catalog?

No. CVE-2015-8920 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2015-8920?

CVE-2015-8920 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2015-8920?

CVE-2015-8920 has an EPSS score of 1.92% (77th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2015-8920?

Upgrade libarchive on debian 11 to 3.2.0-2 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2015-8920

MEDIUMEPSS 77th pctl

5.5

CVSS v3

NVD

Description

The _ar_read_header function in archive_read_support_format_ar.c in libarchive before 3.2.0 allows remote attackers to cause a denial of service (out-of-bounds stack read) via a crafted ar file.

CWE-125Out-of-bounds Read

How to fix

Remediation Available

libarchiveDebian

Fixed in:3.2.0-2CVE-2015-8920

libarchiveUbuntu

Fixed in:3.1.2-7ubuntu2.3USN-3033-1

Fixed in:3.1.2-11ubuntu0.16.04.2USN-3033-1

libarchive13Ubuntu

Fixed in:3.1.2-7ubuntu2.3USN-3033-1

Fixed in:3.1.2-11ubuntu0.16.04.2USN-3033-1

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 VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Exploit Intelligence

1.92%probability of exploitation in 30 days

77thpercentile

Elevated risk: more likely to be exploited than 77% of all known CVEs.

References

Third-Party Advisory5

Other references7

Related Vulnerabilities

Other CWE-125 (Out-of-bounds Read) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-0160	High	7.5	100%	KEV	Fix
CVE-2025-5777	High	7.5	100%	KEV + Ransom	Fix
CVE-2021-4034	High	7.8	95%	KEV	Fix
CVE-2023-21769	High	7.5	92%	-	Fix
CVE-2023-49285	High	8.6	89%	-	Fix
CVE-2020-8794	Critical	9.8	89%	-	Fix

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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 2026-05-06.