CVE-2018-1285: apache log4net
CVSS: 9.8v3.1CriticalModified
AliasesMGASA-2020-0233UBUNTU-CVE-2018-1285USN-4699-1DEBIAN-CVE-2018-1285DLA-2211-1openSUSE-SU-2024:12311-1GHSA-2cwj-8chv-9pp9
Published 11-05-2020Last modified 05-08-2024
Vulnerability summary
CVE-2018-1285 is a critical (CVSS 9.8) vulnerability in apache log4net. EPSS estimates a 17.82% chance of exploitation in the next 30 days, higher than 97.1% of scored vulnerabilities.
CVSS score
9.8/10
010
Critical · v3.1 (NVD)EPSS score
17.82%
0%100%
Medium · +0.46 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 11-05-2020PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
5 scores · 4 sources · 2 versionsCritical 9.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesAll 4 agree
- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · NugetEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
High 7.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
17.82%
Chance of exploitation in the next 30 days
Percentile
97%
Versus all other CVEs
30-day change
+0.46 pp
From 17.37% on 18-09-2026
18-09-202618-10-2026
EPSS score17.82%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Oracle3 products
- application_testing_suite13.3.0.1
- hospitality_opera_55.5 | 5.6
- hospitality_simphony18.2.7.2 | 19.1.3
Netapp2 products
Apache1 product
- log4net< 2.0.10
Debian1 product
- log4net< 1.2.10+dfsg-8 | < 1.2.10+dfsg-6+deb8u1
Fedoraproject1 product
- fedoraEOL30 | 31 | 32
Mageia1 product
- log4net< 2.0.8-2.1.mga7
NuGet1 product
- log4net< 2.0.10
Opensuse1 product
- log4net&distro=openSUSE Tumbleweed< 1.2.10-78.1
Ubuntu1 product
- log4netAll versions (No fix recorded) | < 1.2.10+dfsg-7ubuntu0.16.04.1 | < 1.2.10+dfsg-7ubuntu0.18.04.1 | < 1.2.10+dfsg-7ubuntu0.20.04.1
9 vendors · 12 products