CVE-2025-57812Public exploit

Memory disclosure and corruption via oversized lookup span

Published Nov 12, 2025 · Updated Nov 12, 2025

Out-of-bounds read/write in OpenPrinting libcupsfilters 2.0.0 through 2.1.1 allows remote authenticated users to read or corrupt memory. _cfImageReadTIFF allocates xsize times bpp bytes but passes xsize times 3 to cfImageLut, which reads and writes the entire supplied span. Triggering the mismatch requires a crafted CMYK TIFF, a monochrome print option that reduces bpp, and a printer configuration that invokes cfFilterImageToRaster.

CVSS severity3.7
Low
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read/write in OpenPrinting libcupsfilters 2.0.0 through 2.1.1 allows remote authenticated users to read or corrupt memory. _cfImageReadTIFF allocates xsize times bpp bytes but passes xsize times 3 to cfImageLut, which reads and writes the entire supplied span. Triggering the mismatch requires a crafted CMYK TIFF, a monochrome print option that reduces bpp, and a printer configuration that invokes cfFilterImageToRaster.

The record

CVE
CVE-2025-57812
Published
Nov 12, 2025
Updated
Nov 12, 2025
Vendor
OpenPrinting
Product
libcupsfilters
Classifications
CWE-125, CWE-787
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 12, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 12, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=cups-filters <= 1.28.17
  2. Affected versionversion=libcupsfilters >= 2.0.0, < 2.1.1

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

OpenPrinting · libcupsfiltersversion=cups-filters <= 1.28.17; version=libcupsfilters >= 2.0.0, < 2.1.1

Published CVSS scores

3.7GitHub, Inc.CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-125Out-of-bounds Read
CWE-787Out-of-bounds Write

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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