IBM Jazz Team Server products use weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive in…

published 2021-04-12 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-26212

cvss: 5.9; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.8%; EPSS 0.8% chance of exploitation in 30 days, percentile 56%
public exploits: 0; none known

IBM Jazz Team Server products use weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. IBM X-Force ID: 192422.

Patch / fix

links 1

ibm.com/support/pages/node/6441803 advisory

Exploit prediction

0.80% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.0	5.9	CVSS:3.0/C:H/I:N/A:N/UI:N/S:U/AC:H/AV:N/PR:N/RL:O/E:U/RC:C
NVD	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CNA	3.0	5.9	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD	2.0	5.0	AV:N/AC:L/Au:N/C:P/I:N/A:N

Affected products

IBM Rational DOORS Next Generation
IBM Engineering Test Management
IBM Rational Collaborative Lifecycle Management
IBM Rational Engineering Lifecycle Manager
IBM Rational Quality Manager
IBM Rational Team Concert
IBM Rational Rhapsody Model Manager
IBM Engineering Workflow Management
IBM Engineering Lifecycle Optimization

Classification

Weakness

CWE-327 Use of a Broken or Risky Cryptographic Algorithm

References

ibm.com /support/pages/node/6441803
patch, vendor-advisory
exchange.xforce.ibmcloud.com /vulnerabilities/192422
vdb-entry

Sources

CVE List CVE-2020-4965
NVD CVE-2020-4965

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary