7.5

CVE-2020-27978: shibboleth identity_provider

CVSS: 7.5v3.1HighModified
Published 28-10-2020Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-27978 is a high (CVSS 7.5) vulnerability in shibboleth identity_provider. EPSS estimates a 1.85% chance of exploitation in the next 30 days, higher than 78.8% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
1.85%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 28-10-2020
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

Shibboleth Identify Provider 3.x before 3.4.6 has a denial of service flaw. A remote unauthenticated attacker can cause a login flow to trigger Java heap exhaustion due to the creation of objects in the Java Servlet container session.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

1.85%

Chance of exploitation in the next 30 days

Percentile

79%

Versus all other CVEs

30-day change

0.00 pp

From 1.85% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.85%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Shibboleth1 product

1 vendor · 1 product

References

1 links