CVE-2026-12610Disclosure(fedoraproject / enterprise_linux)

LOWCVSS 6.4 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

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.

0.5/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-825

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • enterprise_linux
  • sssd

Threat summary

  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 2 signals
  • Disclosure: 2 classified signals
  • Peaked 1d ago at 1 mentions (2026-06-30); latest day: 1
  • 2 total mentions across 2 days

Affected systems

Products
enterprise_linuxsssd

4 versions affected across 2 products

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-06-30: 1Mentions · 2026-07-30: 1Technical Details · 2026-06-30: 1Technical Details · 2026-07-30: 106-3007-30
Signal classification1 categories
Disclosure
2100.0%
Referenced assets3 URLs
Full discourse2 posts
  • Ferramentas Linux@Cezar_H_Linux
    Disclosure

    🚨 ATENÇÃO, admins #SUSE! CVE-2026-12610 no SSSD pode causar crash no PAM responder e abrir brecha para um escalonamento de privilégios. Saiba mais . -> http://tinyurl.com/3vte7226 https://t.co/bBwIpvuZHX

    Post summary

    The tweet announces CVE-2026-12610 in SSSD, warning that it can crash the PAM responder and enable privilege escalation, but provides no PoC, exploit details, or patch information.

    1000075
    1.5K followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-12610 Use-After-Free Vulnerability in SSSD YubiKey Authentication Leadi... https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-12610 Customizable Vulnerability Alerts: https://alerts.vulmon.com/?utm_source=twitter&utm_medium=social&utm_campaign=2102281&utm_content=4

    Post summary

    The text announces a Use‑After‑Free vulnerability in SSSD YubiKey authentication and provides a link to a Vulmon page for further details.

    01000135
    4.1K followersView on X
CPE platform detail4 entries

4 of 4 entries

PartVendorProductVersionTarget SWTarget HW
Appfedoraprojectsssd---
OSredhatenterprise_linux10.0--
OSredhatenterprise_linux8.0--
OSredhatenterprise_linux9.0--

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