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CVE-2026-33721 MapServer has heap buffer overflow in SLD `Categorize` Threshold parsing

🗓️ 27 Mar 2026 00:15:00Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 29 Views

CVE-2026-33721 MapServer heap overflow in SLD Categorize parsing enables remote crash via crafted SLD with thresholds.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-33721
27 Mar 202600:15
attackerkb
Anthropic
ANT-2026-9SZMPW41 · MapServer · Heap Buffer Overflow
29 Mar 202620:43
anthropic
CNNVD
Mapserver 缓冲区错误漏洞
27 Mar 202600:00
cnnvd
CVE
CVE-2026-33721
27 Mar 202600:15
cve
Debian
[SECURITY] [DLA 4537-1] mapserver security update
17 Apr 202615:49
debian
Debian CVE
CVE-2026-33721
27 Mar 202600:15
debiancve
Tenable Nessus
Debian dla-4537 : cgi-mapserver - security update
20 Apr 202600:00
nessus
Tenable Nessus
Fedora 42 : mapserver (2026-178c482e71)
5 Apr 202600:00
nessus
Tenable Nessus
Fedora 43 : mapserver (2026-6d7e0a8b45)
5 Apr 202600:00
nessus
Tenable Nessus
Fedora 44 : mapserver (2026-b5a2da2c73)
29 Apr 202600:00
nessus
Rows per page
[
  {
    "vendor": "MapServer",
    "product": "MapServer",
    "versions": [
      {
        "version": ">= 4.2, < 8.6.1",
        "status": "affected"
      }
    ]
  }
]

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27 Mar 2026 00:15Current
CVSS 3.15.3
EPSS0.00647
29