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CVE-2017-12858

32
FAUCET Score

CVE-2017-12858 is a critical double free vulnerability in the _zip_dirent_read function within libzip, impacting applications that utilize this library. With a CVSS score of 9.8, this vulnerability presents a severe risk, allowing unauthenticated attackers to achieve high confidentiality, integrity, and availability impacts over a network with low attack complexity. Despite its critical severity, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.2.0CPE matchmatch criteria
cpe:2.3:a:libzip:libzip:1.2.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.29%
Probability of exploitation in next 30 days
EPSS Percentile
87.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0329 is in the 79th percentile among its peer group of 36,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2017-12858Low

libzip: Double free in _zip_dirent_read function in zip_dirent.c

Aug 23, 2017

References

github.com / nih-at/libzip/commit/2217022b7d1142738656d891e00b3d2d9179b796
PatchThird Party Advisory
securityfocus.com / bid/100459
Third Party AdvisoryVDB Entry