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CVE-2018-16425

22
FAUCET Score

CVE-2018-16425 is a double free vulnerability in OpenSC versions prior to 0.19.0-rc1, specifically within the sc_pkcs15emu_sc_hsm_init function when processing responses from an HSM card. This vulnerability carries a CVSS score of 6.6 (Medium) and could allow an attacker with physical access to a crafted smartcard to trigger a denial of service (application crash) or potentially achieve other unspecified impacts. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.18.0CPE matchmatch criteria
cpe:2.3:a:opensc_project:opensc:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.6MEDIUM

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

Attack Vector
PHYSICAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
0.7
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.66%
Probability of exploitation in next 30 days
EPSS Percentile
47.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0066 is in the 77th percentile among its peer group of 170 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 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-2018-16425Moderate

opensc: Double free handling responses from HSM Cards in pkcs15-sc-hsm.c:sc_pkcs15emu_sc_hsm_init()

Sep 12, 2018

References

github.com / OpenSC/OpenSC/commit/360e95d45ac4123255a4c796db96337f332160ad
PatchThird Party Advisory
github.com / OpenSC/OpenSC/releases/tag/0.19.0-rc1
PatchRelease NotesThird Party Advisory
lists.debian.org / debian-lts-announce/2019/09/msg00009.html
x41-dsec.de / lab/advisories/x41-2018-002-OpenSC
ExploitThird Party Advisory