CVE-2021-20453: ibm websphere_application_server
CVSS: 8.2v3.0HighModified
Published 20-04-2021Last modified 17-09-2024
Vulnerability summary
CVE-2021-20453 is a high (CVSS 8.2) vulnerability in ibm websphere_application_server. EPSS estimates a 2.46% chance of exploitation in the next 30 days, higher than 84.3% of scored vulnerabilities.
CVSS score
8.2/10
010
High · v3.0 (CVE.org)EPSS score
2.46%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 20-04-2021PublishedVulnerability first disclosed.
- 17-09-2024Last modifiedVulnerability information updated.
Description
IBM WebSphere Application Server 8.0, 8.5, and 9.0 is vulnerable to a XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources. IBM X-Force ID: 196648.
CVSS metrics
4 scores · 2 sources · 3 versionsHigh 8.2Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:LSourcesSingle source
High 8.2Preferred score · CVE.org (CNA)
CVSS:3.0/S:U/PR:N/UI:N/AC:L/I:N/C:H/A:L/AV:N/RC:C/RL:O/E:USourcesAll 2 agree
- NVDNIST8.2HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L
Medium 6.4Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:N/A:PSourcesSingle source
EPSS trend
Probability
2.46%
Chance of exploitation in the next 30 days
Percentile
84%
Versus all other CVEs
30-day change
0.00 pp
From 2.46% on 21-09-2026
21-09-202621-10-2026
EPSS score2.46%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ibm1 product
- websphere_application_server8.0 | 8.5 | 9.0 | ≥ 8.0.0.0, < 8.0.0.15 | ≥ 8.5.0.0, < 8.5.5.20 | ≥ 9.0.0.0, < 9.0.5.8
1 vendor · 1 product