Skip to main content
No exploitation reportedFix available

CVE-2023-40661

Opensc: multiple memory issues with pkcs15-init (enrollment tool)

No exploitation reported by the sources we read.

  • Published2023-11-06
  • WeaknessCWE-119

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Several memory vulnerabilities were identified within the OpenSC packages, particularly in the card enrollment process using pkcs15-init when a user or administrator enrolls cards. To take advantage of these flaws, an attacker must have physical access to the computer system and employ a custom-crafted USB device or smart card to manipulate responses to APDUs. This manipulation can potentially allow compromise key generation, certificate loading, and other card management operations during enrollment.

Timeline

dates in UTC
  1. 2023-11-0616:58CVE publishedCNA

Versions per branch

NVD
Redhat enterprise linux
BranchAffectedFixed in
8.0= 8.0no fix published
9.0= 9.0no fix published
Opensc project opensc
BranchAffectedFixed in
0.23≤ 0.23.0no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA4 products

As redhat, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-11-06

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • openscUbuntu:Pro:24.04:LTSall versions · fixed in 0.25.0~rc1-1ubuntu0.1~esm1
  • openscUbuntu:Pro:22.04:LTSall versions · fixed in 0.22.0-1ubuntu2+esm1
  • openscUbuntu:Pro:20.04:LTSall versions · fixed in 0.20.0-3ubuntu0.1~esm4
  • openscUbuntu:Pro:20.04:LTSall versions · fixed in 0.20.0-3ubuntu0.1~esm2
  • openscUbuntu:Pro:18.04:LTSall versions · fixed in 0.17.0-3ubuntu0.1~esm2
  • openscUbuntu:Pro:16.04:LTSall versions · fixed in 0.15.0-1ubuntu1+esm2
  • openscTuxCare:AlmaLinux:9.2all versions · fixed in 0.22.0-2.el9_2.tuxcare.els6
  • openscSUSE:Manager Server 4.2all versions · fixed in 0.19.0-150100.3.25.1

40 more package ranges on OSV.dev

Full record on NVD

Fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • CNACVSS 3.15.42026-11-06
  • NVDCVSS 3.16.4read 2026-11-06
  • CNAweakness (CWE)CWE-1192026-11-06
  • NVDweakness (CWE)CWE-119read 2026-11-06
  • FIRST EPSSEPSS score1.3 %2026-11-08
  • OSVaffected packages—
  • GitHub Advisoriesadvisory—

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:P/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Published
2023-11-06
Last Modified
2026-11-06
NVD status
Modified
GitHub Advisory
GHSA-2c2j-2pgv-gfgc

Frequently asked questions

What is CVE-2023-40661?

Several memory vulnerabilities were identified within the OpenSC packages, particularly in the card enrollment process using pkcs15-init when a user or administrator enrolls cards. To take advantage of these flaws, an attacker must have physical access to the computer system and employ a custom-crafted USB device or smart card to manipulate responses to APDUs. This manipulation can potentially allow compromise key generation, certificate loading, and other card management operations during enrollment.

Is CVE-2023-40661 actively exploited?

Active exploitation of CVE-2023-40661 has not been confirmed. Its EPSS score was 1.3% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2023-40661?

CVE-2023-40661 has a CVSS v3 base score of 6.4 (MEDIUM severity), with vector string CVSS:3.1/AV:P/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H.

Running opensc? Hear about its next vulnerability

Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

Get alerts for this productCISA KEV additions, November 2026Search CVEs

No credit card required · No monthly cap on website lookups · 250 API requests/month

Go further

Related vulnerabilities

Same product first, then the same vendor advisory and the same publication week.

Back to CVE Database

Sources for this record