CVE catalog

CVE-2026-59781

When Zabbix Agent was installed on Windows into a…

When Zabbix Agent was installed on Windows into a custom installation directory, the installer did not verify whether the selected directory had secure access permissions. If the target directory allowed unauthorized users to modify its contents, an attacker could place a malicious DLL that could later be loaded by the application, resulting in DLL sideloading. The installer has been hardened to detect potentially unsafe installation directories and now requires explicit user confirmation before proceeding with installation in such locations. This reduces the risk of accidental installation into directories with inappropriate permissions while preserving compatibility with existing deployment scenarios.

Severity: Medium · CVSS 5.4CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published: Aug 18, 2026, 1:17:25 PM UTC
Updated: Aug 18, 2026, 2:17:15 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.16% · Oct 27, 2026

Projects and upstream resources

[zabbix][Source-reported homepage]

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Version impact has not been established. The original provider fields are retained below.

Provider details and historical evidence

Original provider fields

{
  "package_releases": [
    {
      "name": "zabbix",
      "status": "not affected",
      "release": "sid",
      "version": "1:7.0.29+dfsg-2"
    },
    {
      "name": "zabbix",
      "status": "not affected",
      "release": "forky",
      "version": "1:7.0.29+dfsg-2"
    },
    {
      "name": "zabbix",
      "status": "not affected",
      "release": "trixie",
      "version": "1:7.0.22+dfsg-1~deb13u1"
    },
    {
      "name": "zabbix",
      "status": "not affected",
      "release": "bookworm",
      "version": "1:6.0.14+dfsg-1"
    }
  ],
  "fixed_versions": [
    {
      "bug": null,
      "name": "zabbix",
      "type": "source",
      "origin": null,
      "release": "sid",
      "urgency": "unimportant",
      "fixed_version": "0"
    },
    {
      "bug": null,
      "name": "zabbix",
      "type": "source",
      "origin": null,
      "release": "forky",
      "urgency": "unimportant",
      "fixed_version": "0"
    },
    {
      "bug": null,
      "name": "zabbix",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "unimportant",
      "fixed_version": "0"
    },
    {
      "bug": null,
      "name": "zabbix",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "unimportant",
      "fixed_version": "0"
    }
  ],
  "distribution_packages": [
    {
      "name": "zabbix",
      "ranges": [
        {
          "fixed": "7.4.13",
          "introduced": "7.4.0",
          "last_affected": "",
          "start_excluding": ""
        }
      ],
      "ecosystem": "cpe",
      "fixed_version": "7.4.13",
      "provider_record_id": "NVD-CVE-2026-59781"
    }
  ]
}

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

[zabbix-agent]Unknown
Source package: [zabbix]
Details (4)
- 1:6.0.14+dfsg-1+b1 · amd64 · bookworm
  Not affected
  nvd · zabbix · debian · bookworm
- 1:6.0.14+dfsg-1+b1 · arm64 · bookworm
  Not affected
  nvd · zabbix · debian · bookworm
- 1:7.0.9+dfsg-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  nvd · zabbix · debian · bookworm
- 1:7.0.9+dfsg-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  nvd · zabbix · debian · bookworm
[zabbix-agent2]Unknown
Source package: [zabbix]
Details (4)
- 1:6.0.14+dfsg-1+b1 · amd64 · bookworm
  Not affected
  nvd · zabbix · debian · bookworm
- 1:6.0.14+dfsg-1+b1 · arm64 · bookworm
  Not affected
  nvd · zabbix · debian · bookworm
- 1:7.0.9+dfsg-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  nvd · zabbix · debian · bookworm
- 1:7.0.9+dfsg-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  nvd · zabbix · debian · bookworm
[zabbix-frontend-php]Unknown
Source package: [zabbix]
Details (4)
- 1:6.0.14+dfsg-1 · all · bookworm
  Not affected
  nvd · zabbix · debian · bookworm
- 1:6.0.14+dfsg-1 · all · bookworm
  Not affected
  nvd · zabbix · debian · bookworm
- 1:7.0.9+dfsg-1~bpo12+1 · all · bookworm-backports
  Not affected
  nvd · zabbix · debian · bookworm
- 1:7.0.9+dfsg-1~bpo12+1 · all · bookworm-backports
  Not affected
  nvd · zabbix · debian · bookworm
[zabbix-java-gateway]Unknown
Source package: [zabbix]
Details (4)
- 1:6.0.14+dfsg-1 · all · bookworm
  Not affected
  nvd · zabbix · debian · bookworm
- 1:6.0.14+dfsg-1 · all · bookworm
  Not affected
  nvd · zabbix · debian · bookworm
- 1:7.0.9+dfsg-1~bpo12+1 · all · bookworm-backports
  Not affected
  nvd · zabbix · debian · bookworm
- 1:7.0.9+dfsg-1~bpo12+1 · all · bookworm-backports
  Not affected
  nvd · zabbix · debian · bookworm
[zabbix-proxy-mysql]Unknown
Source package: [zabbix]
Details (4)
- 1:6.0.14+dfsg-1+b1 · amd64 · bookworm
  Not affected
  nvd · zabbix · debian · bookworm
- 1:6.0.14+dfsg-1+b1 · arm64 · bookworm
  Not affected
  nvd · zabbix · debian · bookworm
- 1:7.0.9+dfsg-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  nvd · zabbix · debian · bookworm
- 1:7.0.9+dfsg-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  nvd · zabbix · debian · bookworm
[zabbix-proxy-pgsql]Unknown
Source package: [zabbix]
Details (4)
- 1:6.0.14+dfsg-1+b1 · amd64 · bookworm
  Not affected
  nvd · zabbix · debian · bookworm
- 1:6.0.14+dfsg-1+b1 · arm64 · bookworm
  Not affected
  nvd · zabbix · debian · bookworm
- 1:7.0.9+dfsg-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  nvd · zabbix · debian · bookworm
- 1:7.0.9+dfsg-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  nvd · zabbix · debian · bookworm
[zabbix-proxy-sqlite3]Unknown
Source package: [zabbix]
Details (4)
- 1:6.0.14+dfsg-1+b1 · amd64 · bookworm
  Not affected
  nvd · zabbix · debian · bookworm
- 1:6.0.14+dfsg-1+b1 · arm64 · bookworm
  Not affected
  nvd · zabbix · debian · bookworm
- 1:7.0.9+dfsg-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  nvd · zabbix · debian · bookworm
- 1:7.0.9+dfsg-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  nvd · zabbix · debian · bookworm
[zabbix-sender]Unknown
Source package: [zabbix]
Details (2)
- 1:7.0.9+dfsg-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  nvd · zabbix · debian · bookworm
- 1:7.0.9+dfsg-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  nvd · zabbix · debian · bookworm
[zabbix-server-mysql]Unknown
Source package: [zabbix]
Details (4)
- 1:6.0.14+dfsg-1+b1 · amd64 · bookworm
  Not affected
  nvd · zabbix · debian · bookworm
- 1:6.0.14+dfsg-1+b1 · arm64 · bookworm
  Not affected
  nvd · zabbix · debian · bookworm
- 1:7.0.9+dfsg-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  nvd · zabbix · debian · bookworm
- 1:7.0.9+dfsg-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  nvd · zabbix · debian · bookworm
[zabbix-server-pgsql]Unknown
Source package: [zabbix]
Details (4)
- 1:6.0.14+dfsg-1+b1 · amd64 · bookworm
  Not affected
  nvd · zabbix · debian · bookworm
- 1:6.0.14+dfsg-1+b1 · arm64 · bookworm
  Not affected
  nvd · zabbix · debian · bookworm
- 1:7.0.9+dfsg-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  nvd · zabbix · debian · bookworm
- 1:7.0.9+dfsg-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  nvd · zabbix · debian · bookworm
[zabbix-web-service]Unknown
Source package: [zabbix]
Details (4)
- 1:6.0.14+dfsg-1+b1 · amd64 · bookworm
  Not affected
  nvd · zabbix · debian · bookworm
- 1:6.0.14+dfsg-1+b1 · arm64 · bookworm
  Not affected
  nvd · zabbix · debian · bookworm
- 1:7.0.9+dfsg-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  nvd · zabbix · debian · bookworm
- 1:7.0.9+dfsg-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  nvd · zabbix · debian · bookworm

Observed: Oct 23, 2026, 9:38:45 PM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)]