CVE-2026-12610

🔶 medium

Summary

A flaw was found in sssd. When authenticating with a YubiKey, the SSSD PAM responder can crash due to a use-after-free vulnerability, where a memory pointer is incorrectly handled. A local attacker could exploit this flaw by manipulating smartcard or YubiKey contents, leading to a denial of service that disrupts authentication. This vulnerability also presents a potential for privilege escalation, although it is difficult to exploit.

CVSS Score

6.4

Medium

EPSS Score

0.2

Exploit Probability

Published Date

2026-06-30

First Seen: 2026-07-01

📊 Relative Risk Intelligence

This CVE is Lower Risk - more severe than 40.8% of all 335,187 vulnerabilities in our database.

#198,500

Below average severity

Severity Percentile

🎯 CISA SSVC Assessment Updated: Jun 30, 2026

🔍 Exploitation Status

None

No known exploits

⚙️ Automatable

Requires human interaction

💥 Technical Impact

Total

Complete system compromise possible

SSVC data provided by CISA

Last Modified 2026-06-30

Source NVD 🔗

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

CWE IDs (Weakness Types)

CWE-825

📦 Affected Products 4

Vendor	Product	Status	Affected Versions
redhat	enterprise_linux	Affected	v10.0
redhat	enterprise_linux	Affected	v8.0
redhat	enterprise_linux	Affected	v9.0
fedoraproject	sssd	Affected	v-

🔗 References 3

https://access.redhat.com/security/cve/CVE-2026-12610

Mitigation Vendor Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=2490288

Vendor Advisory

https://github.com/SSSD/sssd/issues/8796

Issue Tracking Mitigation

🔗 Related CVEs 6

CVE ID	Severity	CVSS	EPSS	Summary	Published
CVE-2026-15041	ℹ️ low	3.7	0.3	A flaw was found in 389 Directory Server. The PBKDF2-SHA256 password verification function uses standard memcmp() for co...	2026-07-08
CVE-2026-58384	⚠️ high	7.3	0.2	A flaw was found in GIMP's PSD parser. An integer overflow in read_RLE_channel() can cause an undersized heap allocation...	2026-07-07
CVE-2026-14940	🔶 medium	5.3	0.3	A heap-buffer-overflow flaw was found in 389 Directory Server (389-ds-base). When normalizing a Distinguished Name (DN) ...	2026-07-07
CVE-2026-14969	🔶 medium	4.4	0.1	A flaw was found in 389-ds-base where the LDBM backend attribute encryption uses a hardcoded static initialization vecto...	2026-07-07
CVE-2026-58380	⚠️ high	7.3	0.2	A flaw was found in GIMP's PNM file format parser. When parsing a specially crafted PNM file, the pnmscanner_gettoken() ...	2026-07-06
CVE-2026-59089	🔶 medium	5.5	0.2	A flaw was found in GIMP. The PlayStation TIM loader, responsible for handling PlayStation image files, incorrectly calc...	2026-07-06

These CVEs affect the same products