TI-2020-10322 Aliases CVE-2020-13132 GHSA-mg7w-vxv4-393q

An issue was discovered in Yubico libykpiv before 2.1.0.

LOW 22CWE-763Published 2020-07-09 · Updated 2024-08-04

Key facts

Attack vector: Physical
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: None · None · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

An issue was discovered in Yubico libykpiv before 2.1.0. An attacker can trigger an incorrect free() in the ykpiv_util_generate_key() function in lib/util.c through incorrect error handling code. This could be used to cause a denial of service attack.

Why it matters now

EPSS 0.00638 50th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 3

CPE	Versions	Role	Vendor
cpe:2.3:a:yubico:libykpiv::::::::	before 2.1.0	Vulnerable	Yubico
cpe:2.3:a:yubico:piv_tool_manager::::::::	before 2.0.0	Vulnerable	Yubico
cpe:2.3:a:yubico:yubikey_smart_card_minidriver::::::::	up to 4.1.0.172	Vulnerable	Yubico

cpe:2.3:a:yubico:libykpiv:*:*:*:*:*:*:*:* Versions before 2.1.0 Vulnerable ·Yubico
cpe:2.3:a:yubico:piv_tool_manager:*:*:*:*:*:*:*:* Versions before 2.0.0 Vulnerable ·Yubico
cpe:2.3:a:yubico:yubikey_smart_card_minidriver:*:*:*:*:*:*:*:* Versions up to 4.1.0.172 Vulnerable ·Yubico

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product

Red Hat

Timeline

2026-10-02 Threatist record created from CVE-2020-13132
2026-10-03 Alias added: GHSA-mg7w-vxv4-393q
2026-10-24 EPSS moved to the 50th–90th percentile

References

Exploit 1

https://blog.inhq.net/posts/yubico-libykpiv-vuln/

Advisory 1

https://www.yubico.com/support/security-advisories/ysa-2020-02/

TI-2020-10321 An issue was discovered in Yubico libykpiv before 2.1.0. CVSS 3.1MEDIUM 4.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences