CVE-2026-87876

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.32% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 25.6% of scored records. A rank, not a probability.

NVD base score

3.0 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Awaiting Analysis. NVD last modified this record on 2026-10-21.

Red Hat severity

Low. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-09-09 16:12Z1 MO AGO

Last updated

2026-10-21 20:07Z8 DAYS AGO

Reserved

2026-09-09

Assigning CNA

redhat

Record state

PUBLISHED

Severity

Low (CVSS 3.0)

CNA CVSS vector

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

Weaknesses

• CWE-178Improper Handling of Case SensitivityBase

Data version

5.2

Document digest

d10c2cc76e2838238e904b324599811ada4a3c08378a1292da8b6c641fc90907

• access.redhat.comRHSA-2026:67568https://access.redhat.com/errata/RHSA-2026:67568vendor-advisoryx_refsource_REDHAT
• access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-87876vdb-entryx_refsource_REDHAT
• bugzilla.redhat.comRHBZ#2530991https://bugzilla.redhat.com/show_bug.cgi?id=2530991issue-trackingx_refsource_REDHAT
• github.comhttps://github.com/OpenPrinting/cups/commit/88e67c00c130a45f3a1edf36686f7a0b2982fef8
• github.comhttps://github.com/OpenPrinting/cups/commit/f56844dbe4a54a9f8e1aeb3b913fbee614156bdb
• github.comhttps://github.com/OpenPrinting/cups/security/advisories/GHSA-r8jp-q6fh-g5r2