CVE-2026-107886

Status: Awaiting AnalysisLow (2.3)—

OpenPrinting CUPS before 2.4.20 contains a double-free in printer-class management. When CUPS-Add-Modify-Class replaces an existing class member list, add_class() frees pclass->printers without clearing the pointer. If subsequent validation fails, the class retains the dangling pointer; CUPS-Delete-Class subsequently frees the same allocation in cupsdDeletePrinter(). A client authorized to modify and delete classes can cause scheduler-wide denial of service. The default policy requires @SYSTEM privileges.

CVSS

Version: 3.1
Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
Base score: 2.3

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 0.10%
Percentile among all scored CVEs: 1
Score date: 10/14/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

🎯 ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

ExploitationT1068 Exploitation for Privilege Escalationprivilege escalation85 %
Primary impactT1499.004 Application or System Exploitationimpact80 %

Acceso local (AV:L) con privilegios altos (PR:H) sin interacción (UI:N) → T1068. Double-free causa DoS en el scheduler de CUPS (T1499.004). Requiere @SYSTEM para modificar/borrar clases.

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

🛡️ ATT&CK mitigations that cover these techniques

Threat Intelligence Program Filter Network Traffic Execution Prevention Application Isolation and Sandboxing Exploit Protection Update Software

Affected technologies (1)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

Openprinting — Cups^AI

CWEs

CWE-415

References

Raw JSON (NVD)

Show

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  "published": "2026-10-09T04:18:05.163",
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  "lastModified": "2026-10-09T18:17:06.273",
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