CVE-2020-4421: ibm websphere_application_server Authentication Bypass by Spoofing
CVSS: 5.5v2.0MediumModified
Published 06-05-2020Last modified 17-09-2024
Vulnerability summary
CVE-2020-4421 is a medium (CVSS 5.5) Authentication Bypass by Spoofing vulnerability in ibm websphere_application_server. EPSS estimates a 0.62% chance of exploitation in the next 30 days, higher than 49% of scored vulnerabilities.
CVSS score
5.5/10
010
Medium · v2.0 (NVD)EPSS score
0.62%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 06-05-2020PublishedVulnerability first disclosed.
- 17-09-2024Last modifiedVulnerability information updated.
Description
IBM WebSphere Application Liberty 19.0.0.5 through 20.0.0.4 could allow an authenticated user using openidconnect to spoof another users identify. IBM X-Force ID: 180084.
CVSS metrics
4 scores · 2 sources · 3 versionsMedium 5.4Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:NSourcesSingle source
Medium 5.0Preferred score · CVE.org (CNA)
CVSS:3.0/A:L/I:L/AV:N/AC:H/S:U/C:L/PR:L/UI:N/RL:O/E:U/RC:CSourcesAll 2 agree
- NVDNIST5.0MediumCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
Medium 5.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:S/C:P/I:P/A:NSourcesSingle source
EPSS trend
Probability
0.62%
Chance of exploitation in the next 30 days
Percentile
49%
Versus all other CVEs
30-day change
0.00 pp
From 0.62% on 21-09-2026
21-09-202621-10-2026
EPSS score0.62%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ibm2 products
- websphere_application_server≥ 19.0.0.5, < 20.0.0.5
- websphere_application_server_liberty20.0.0.4 | 19.0.0.5
1 vendor · 2 products