CVE-2018-1638: ibm api_connect Improper Authentication
CVSS: 8.1v3.0HighModified
Published 31-07-2018Last modified 16-09-2024
Vulnerability summary
CVE-2018-1638 is a high (CVSS 8.1) Improper Authentication vulnerability in ibm api_connect. EPSS estimates a 1.75% chance of exploitation in the next 30 days, higher than 77.4% of scored vulnerabilities.
CVSS score
8.1/10
010
High · v3.0 (NVD)EPSS score
1.75%
0%100%
Low · -0.07 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 31-07-2018PublishedVulnerability first disclosed.
- 16-09-2024Last modifiedVulnerability information updated.
Description
IBM API Connect 5.0.0.0-5.0.8.3 Developer Portal does not enforce Two Factor Authentication (TFA) while resetting a user password but enforces it for all other login scenarios. IBM X-Force ID: 144483.
CVSS metrics
3 scores · 2 sources · 2 versionsHigh 8.1Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HSources2 sources · 5.9–8.1
- CVE.orgCNA5.9MediumCVSS:3.0/A:N/AC:H/AV:N/C:N/I:H/PR:N/S:U/UI:N/E:U/RC:C/RL:ODiffers
Medium 6.8Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
1.75%
Chance of exploitation in the next 30 days
Percentile
77%
Versus all other CVEs
30-day change
-0.07 pp
From 1.81% on 20-09-2026
20-09-202620-10-2026
EPSS score1.75%
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
- api_connect5.0.0.0-5.0.8.3 | ≥ 5.0.0.0, ≤ 5.0.8.3
1 vendor · 1 product