CVE-2026-64612: Uncaught Exception in Red Hat Red Hat Enterprise Linux 10
A flaw was found in libcupsfilters and cups-filters. The PNG image reading function creates a libpng reader without installing an error recovery handler, causing the CUPS image filter process to abort when processing a malformed PNG file. An unauthenticated attacker could exploit this by submitting a specially crafted PNG print job, leading to denial of service of the in-flight print job.
AI Analysis
Technical Summary
CVE-2026-64612 is a denial of service vulnerability in Red Hat Enterprise Linux 10 affecting libcupsfilters and cups-filters. The flaw is due to the PNG image reading function creating a libpng reader without an error recovery handler, which leads to the CUPS image filter process aborting when processing malformed PNG files. An unauthenticated attacker can exploit this by submitting a malicious PNG print job, causing the in-flight print job to fail.
Potential Impact
Successful exploitation results in denial of service (DoS) of the print job in progress. There is no impact on confidentiality or integrity, only availability is affected. The vulnerability can be triggered remotely without authentication by submitting a crafted PNG file to the print system.
Mitigation Recommendations
Patch status is not yet confirmed — check the Red Hat advisory at https://access.redhat.com/security/cve/CVE-2026-64612 for current remediation guidance. No official fix or workaround is stated in the provided data. Until a patch is available, consider restricting access to the printing service to trusted users to reduce risk.
CVE-2026-64612: Uncaught Exception in Red Hat Red Hat Enterprise Linux 10
Description
A flaw was found in libcupsfilters and cups-filters. The PNG image reading function creates a libpng reader without installing an error recovery handler, causing the CUPS image filter process to abort when processing a malformed PNG file. An unauthenticated attacker could exploit this by submitting a specially crafted PNG print job, leading to denial of service of the in-flight print job.
CVSS v3.1
Score 7.5high
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-64612 is a denial of service vulnerability in Red Hat Enterprise Linux 10 affecting libcupsfilters and cups-filters. The flaw is due to the PNG image reading function creating a libpng reader without an error recovery handler, which leads to the CUPS image filter process aborting when processing malformed PNG files. An unauthenticated attacker can exploit this by submitting a malicious PNG print job, causing the in-flight print job to fail.
Potential Impact
Successful exploitation results in denial of service (DoS) of the print job in progress. There is no impact on confidentiality or integrity, only availability is affected. The vulnerability can be triggered remotely without authentication by submitting a crafted PNG file to the print system.
Mitigation Recommendations
Patch status is not yet confirmed — check the Red Hat advisory at https://access.redhat.com/security/cve/CVE-2026-64612 for current remediation guidance. No official fix or workaround is stated in the provided data. Until a patch is available, consider restricting access to the printing service to trusted users to reduce risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- redhat
- Date Reserved
- 2026-07-20T11:15:34.675Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://access.redhat.com/security/cve/CVE-2026-64612","vendor":"Red Hat"}]
Threat ID: 6a5e61942a4a8d59897a507d
Added to database: 07/20/2026, 17:57:40 UTC
Last enriched: 07/20/2026, 18:11:53 UTC
Last updated: 07/21/2026, 05:54:37 UTC
Views: 13
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