THREATPORT/VULNERABILITY/CVE-2009-3553
HIGH SEVERITY

CVE-2009-3553

Cups vulnerability

CVSS
7.5
EPSS
3.9%
EPSS pct
89th
Exploited
No known
Use-after-free vulnerability in the abstract file-descriptor handling interface in the cupsdDoSelect function in scheduler/select.c in the scheduler in cupsd in CUPS 1.3.7 and 1.3.10 allows remote attackers to cause a denial of service (daemon crash or hang) via a client disconnection during listing of a large number of print jobs, related to improperly maintaining a reference count. NOTE: some of these details are obtained from third party information.
Affected vendor
Apple
Affected product
Cups
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness type (CWE)
Published
2009-11-20

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to availability.

Its EPSS score of 3.9% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 89% of all scored CVEs.

Check your external exposure to CVE-2009-3553

  • Confirm whether Apple Cups is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2009-3553.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2009-3553

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2009-3553 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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