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No exploitation reportedFix available

CVE-2019-19102

No exploitation reported by the sources we read.

  • Published2020-04-29
  • WeaknessCWE-22

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A directory traversal vulnerability in SharpZipLib used in the upgrade service in B&R Automation Studio versions 4.0.x, 4.1.x and 4.2.x allow unauthenticated users to write to certain local directories. The vulnerability is also known as zip slip.

Timeline

dates in UTC
  1. 2020-04-2903:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2019-19102?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2019-19102?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Br-automation automation studio
BranchAffectedFixed in
4.0≥ 4.0, ≤ 4.0.32.15no fix published
4.1≥ 4.1, ≤ 4.1.17.113no fix published
4.2≥ 4.2, ≤ 4.2.14.119no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

  • ICSA-20-093-01 CISA9 known affected

    B&R Automation Studio

    Automation Studio: versions prior to 4.4.9SP · Automation Studio: versions prior to 4.6.3SP · Automation Studio: Versions 4.1.x · +6 more

Full record on NVD

Fix

  1. Vendor fix CISA ICSA-20-093-01 · 9 productsB&R recommends applying product updates at the earliest convenience. Users of Automation Studio Versions 4.0.x, 4.1.x, and 4.2.x are advised to upgrade to a newer version of Automation Studio.
  2. Vendor fix CISA ICSA-20-093-01 · 9 productsThe upgrade service now operates with reduced privileges. Additionally, the deletion process is restricted to Automation Studio downloaded files and directories.
  3. Vendor fix CISA ICSA-20-093-01 · 9 productsB&Rs upgrade server now serves HTTPS links in the configuration files. Additionally, Microsoft .NET Framework certificate checks are now being used in the Automation Studio upgrade service.
  4. Vendor fix CISA ICSA-20-093-01 · 9 productsAutomation Studio 4.3 and later should be switched from the SharpZipLib to the .NET Framework, provided native ZIP archive implementation. For these versions the issue is not reproducible. For prior versions of Automation Studio, it is recommended to update the installation.
  5. Vendor fix CISA ICSA-20-093-01 · 9 productsIt is possible to manually adjust the permissions of the Automation Studio upgrade. Access to the Automation Studio installation and the device it is used on should be restricted.
  6. Mitigation from the vendor CISA ICSA-20-093-01 · 9 productsAccess to zip archives is controlled and access of the zip archive is limited to trusted parties only.

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

  • CNACVSS 3.15.5read 2026-10-23
  • NVDCVSS 3.17.5read 2026-10-23
  • NVDCVSS 2.05read 2026-10-23
  • CNAweakness (CWE)CWE-22read 2026-10-23
  • NVDweakness (CWE)CWE-22read 2026-10-23
  • FIRST EPSSEPSS score1.3 %2026-10-22

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Published
2020-04-29
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2019-19102?

A directory traversal vulnerability in SharpZipLib used in the upgrade service in B&R Automation Studio versions 4.0.x, 4.1.x and 4.2.x allow unauthenticated users to write to certain local directories. The vulnerability is also known as zip slip.

Is CVE-2019-19102 actively exploited?

Active exploitation of CVE-2019-19102 has not been confirmed. Its EPSS score was 1.3% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-19102?

CVE-2019-19102 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

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