Is CVE-2017-12858 in the CISA KEV catalog?

No. CVE-2017-12858 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-12858?

CVE-2017-12858 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2017-12858?

CVE-2017-12858 has an EPSS score of 3.29% (87th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2017-12858?

No published fix for CVE-2017-12858 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2017-12858

CRITICALEPSS 87th pctl

9.8

CVSS v3

NVD

Description

Double free vulnerability in the _zip_dirent_read function in zip_dirent.c in libzip allows attackers to have unspecified impact via unknown vectors.

CWE-415

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

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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

3.29%probability of exploitation in 30 days

87thpercentile

Elevated risk: more likely to be exploited than 87% of all known CVEs.

References

Patch1

github.com

Third-Party Advisory1

securityfocus.com

Related Vulnerabilities

Other CWE-415 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-25136	Medium	6.5	90%	-	Fix
CVE-2018-0101	Critical	10.0	87%	-	Fix
CVE-2003-0545	Critical	9.8	85%	-	Fix
CVE-2019-3829	Medium	5.3	59%	-	Fix
CVE-2026-33824	Critical	9.8	56%	-	Fix
CVE-2021-3407	Medium	5.5	50%	-	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 2026-05-13.