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CVE-2026-64612— Libcupsfilters: cups-filters: libcupsfilters: cups image filter process abort via malformed png

Quick assessment

Affected
Red Hat Red Hat Enterprise Linux 10
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OpenPrinting libcupsfilters是OpenPrinting组织开源的一个打印过滤库。 OpenPrinting libcupsfilters存在异常处理不当漏洞，该漏洞源于PNG图像读取功能未安装错误恢复处理程序，导致处理恶意PNG文件时CUPS图像过滤器进程中止，未经身份验证的攻击者提交特制PNG打印作业可能造成拒绝服务。Red Hat Enterprise Linux 10版本、8版本和9版本受到影响。

CVSS 7.5 · High EPSS 0.70% · P51

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 5

VendorProduct Version RangeStatus
Red Hat Red Hat Enterprise Linux 10 1:2.0.0-13.el10_2< * unaffected
any unaffected
Red Hat Red Hat Enterprise Linux 7 any unknown
Red Hat Red Hat Enterprise Linux 8 0:1.20.0-36.el8_10.1< * unaffected
Red Hat Red Hat Enterprise Linux 9 0:1.28.7-27.el9_8< * unaffected
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I. Basic Information for CVE-2026-64612

Vulnerability Information
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Vulnerability Title
Libcupsfilters: cups-filters: libcupsfilters: cups image filter process abort via malformed png
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未捕获的异常
Source: CVE Program / CVE List V5
Vulnerability Title
OpenPrinting libcupsfilters 异常处理不当漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenPrinting libcupsfilters是OpenPrinting组织开源的一个打印过滤库。 OpenPrinting libcupsfilters存在异常处理不当漏洞，该漏洞源于PNG图像读取功能未安装错误恢复处理程序，导致处理恶意PNG文件时CUPS图像过滤器进程中止，未经身份验证的攻击者提交特制PNG打印作业可能造成拒绝服务。Red Hat Enterprise Linux 10版本、8版本和9版本受到影响。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Red Hat Red Hat Enterprise Linux 10 1:2.0.0-13.el10_2 ~ * cpe:/o:redhat:enterprise_linux:10.2
Red Hat Red Hat Enterprise Linux 8 0:1.20.0-36.el8_10.1 ~ * cpe:/a:redhat:enterprise_linux:8::appstream
Red Hat Red Hat Enterprise Linux 9 0:1.28.7-27.el9_8 ~ * cpe:/a:redhat:enterprise_linux:9::appstream
Red Hat Red Hat Enterprise Linux 10 - cpe:/o:redhat:enterprise_linux:10
Red Hat Red Hat Enterprise Linux 7 - cpe:/o:redhat:enterprise_linux:7

II. Public POCs for CVE-2026-64612

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Qwen3.6-35B-A3B · 7359 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-64612

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Vendor Advisories for CVE-2026-64612 (6)

Same Patch Batch · Red Hat · 2026-07-20 · 8 CVEs total

CVE-2026-16242 9.4 CRITICAL Hypershift: konnectivity proxy-server accepts agent connections without validating client
CVE-2026-12701 9.0 CRITICAL Pulpcore: pulpcore: relative_path_validator bypass via directory traversal in filesystemex
CVE-2026-12080 7.3 HIGH Qemu-kvm: qemu-guest-agent: local privilege escalation via symlink attack in guest-ssh-add
CVE-2026-15813 6.5 MEDIUM Kronosnet: kronosnet: memory corruption and out-of-bounds access via malformed network pac
CVE-2026-16277 6.5 MEDIUM Rpcbind: rpcbind: stack buffer overflow in rpcinfo rpcbaddrlist()
CVE-2026-15588 5.3 MEDIUM Gdbusserver: glib2: gdbusserver pre-authentication dos via unbounded sasl line buffering
CVE-2026-16254 4.3 MEDIUM Claircore: claircore: denial of service via out-of-bounds slice in claircore's apk install

IV. Related Vulnerabilities

Same product: Red Hat Enterprise Linux 10
Same vendor: Red Hat
Same weakness: CWE-248

V. Comments for CVE-2026-64612

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