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CVE-2026-33721VulnerabilityPublished Updated

SUSE mapserver · Security update for mapserver

Affects SUSE mapserverSource GCVE Database

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Mentioned vulnerabilities

Not known to be exploited : upgrade the SUSE suse/mapserver package to 8.6.3 soon.

Data as of 31 Oct 2026, 20:20 UTC

Severity
High

Rated by Threat Radar · No CVSS score from NVD or the CNA

EPSS
1.2% chance of exploitation in 30 days – higher than 68% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 8.6.3

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 1 Jun 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 31 Oct 2026.

What to do

Upgrade the SUSE suse/mapserver package to 8.6.3.

Affected software

ProductAffectedFixed in
SUSEsuse/mapserverpkg:rpm/suse/mapserverOther threatsAffected
  • <8.6.3
Fixed in
  • 8.6.3

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Update MapServer to release 8.6.3 or later to apply the fix for this vulnerability. No other mitigation steps are indicated.

Description

A security update for MapServer addresses an out-of-bounds access vulnerability in the SLD parser. The issue occurs when an SLD contains only a Rule with an ElseFilter but lacks a symbolizer. This vulnerability is identified by CVE-2026-33721 and CVE-2026-45104 and is fixed in release 8.6.3.

References

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