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EUVD-2026-42188

🗓️ 08 Jul 2026 08:07:11Reported by EUVDType 
euvd
 euvd
🔗 euvd.enisa.europa.eu👁 5 Views

Local attackers can cause a heap overflow by supplying PCX fonts to xorg-server before 21.2.24 or xwayland before 24.1.13 via SetFont.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-55999
8 Jul 202608:07
attackerkb
AlpineLinux
CVE-2026-55999
8 Jul 202608:07
alpinelinux
CVE
CVE-2026-55999
8 Jul 202608:07
cve
Cvelist
CVE-2026-55999 xorg-server / xwayland glamor font atlas Heap Buffer Overflow
8 Jul 202608:07
cvelist
Debian CVE
CVE-2026-55999
8 Jul 202608:07
debiancve
NVD
CVE-2026-55999
8 Jul 202609:16
nvd
OSV
DEBIAN-CVE-2026-55999
8 Jul 202608:48
osv
Positive Technologies
PT-2026-56334
8 Jul 202600:00
ptsecurity
Vulnrichment
CVE-2026-55999 xorg-server / xwayland glamor font atlas Heap Buffer Overflow
8 Jul 202608:07
vulnrichment
[
  {
    "enisaIdVendor": [
      {
        "id": "96b8be51-b061-37d6-b627-0a32011fa33b",
        "vendor": {
          "name": "X.org"
        }
      }
    ],
    "enisaIdProduct": [
      {
        "id": "02e3efd3-64c3-32b6-8ae8-920b5b2d24e7",
        "product": {
          "name": "xorg-server",
          "vendor": {
            "name": "n/a"
          }
        },
        "product_version": "0 <21.1.24"
      },
      {
        "id": "8fab1d15-aef6-34ff-a6a7-662b27222233",
        "product": {
          "name": "xwayland",
          "vendor": {
            "name": "X.org"
          }
        },
        "product_version": "0 <24.1.13"
      }
    ]
  }
]

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08 Jul 2026 08:12Current
6.2Medium risk
Vulners AI Score6.2
CVSS 3.18.5
SSVC
5