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Fencer Vulns
critical 9.8

CVE-2018-1285 in the critical feed json

XML External Entity attack in log4net

published 2020-05-11 6 y ago modified 2026-06-17 4 mo ago also GHSA-2cwj-8chv-9pp9 , EUVD-2021-0478

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
17.8%
EPSS 17.8% chance of exploitation in 30 days, percentile 97%
public exploits
0
none known

Summary

Apache log4net versions before 2.0.10 do not disable XML external entities when parsing log4net configuration files. This allows for XXE-based attacks in applications that accept attacker-controlled log4net configuration files.

Patch / fix

  • nuget log4net 2.0.10
  • apache log4net 2.0.10
  • log4net Debian 14, Debian 13 1.2.10+dfsg-8

debian advisories DEBIAN-CVE-2018-1285

  • log4net Ubuntu 16.04 LTS 1.2.10+dfsg-7ubuntu0.16.04.1
  • log4net Ubuntu 18.04 LTS 1.2.10+dfsg-7ubuntu0.18.04.1
  • log4net Ubuntu 20.04 LTS 1.2.10+dfsg-7ubuntu0.20.04.1

ubuntu advisories UBUNTU-CVE-2018-1285

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • log4net openSUSE Tumbleweed 1.2.10-78.1

opensuse advisories openSUSE-SU-2024:12311-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-26-239-04 updated cvss 9.8

Applied Systems Engineering ASE2000 V2 Communications Test Set

  • Applied Systems Engineering ASE2000 >=2.25, <=2.37
    affected: fixed in 2.38, mitigation “Until the upgrade can be applied, the following interim measures reduce exposure:”

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

red hat product security vex CVE-2018-1285 updated cvss 8.8

log4net: XXE in applications that accept arbitrary configuration files from users

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-25-142-02 updated cvss 9.8

Rockwell Automation FactoryTalk Historian ThingWorx

  • Rockwell Automation 95057C-FTHTWXCT11 <=v4.02.00
    affected: vendor fix, mitigation “Rockwell Automation released a product update addressing this vulnerability:” rockwellautomation.custhelp.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

cisa ICSA-24-226-02 updated cvss 9.8

Rockwell Automation AADvance Standalone OPC-DA Server

  • Rockwell Automation AADvance Standalone OPC-DA Server >=v2.01.510
    affected: fixed in v2.02, mitigation “Rockwell Automation has released product updates addressing these vulnerabilities:” rockwellautomation.custhelp.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

cisa ICSMA-23-194-01 updated cvss 3.0

BD Alaris System with Guardrails Suite MX

  • Becton, Dickinson and Company (BD) BD Alaris Guardrails Editor <=12.1.2 Becton, Dickinson and Company (BD) BD Alaris Point-of-Care Unit (PCU) Model 8015 <=12.1.3
    affected: mitigation “BD has releaed BD Alaris System 12.3 with the following software:” bd.com
  • Becton, Dickinson and Company (BD) BD Alaris Systems Manager <=12.3 Becton, Dickinson and Company (BD) Calculation Services <=1.0
    affected: vendor fix, mitigation “BD has releaed BD Alaris System 12.3 with the following software:” bd.com
  • Becton, Dickinson and Company (BD) CQI Reporter <=10.17
    affected: mitigation “BD has releaed BD Alaris System 12.3 with the following software:” bd.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

17.82% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P
GitHub 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
nuget log4net
<2.0.10
2.0.10

Affected products

  • n/a Apache log4net

Classification

Weakness
  • CWE-611 Improper Restriction of XML External Entity Reference

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.