Skip to content
Fencer Intel
medium 4.5

CVE-2021-20534 json

IBM Security Verify Access Docker 10.0.0 could allow a remote attacker to conduct phishing attacks, using an open redirect attack.

published 5y ago modified 4mo ago also EUVD-2021-7952

cvss
4.5
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 45%
public exploits
0
none known

Summary

IBM Security Verify Access Docker 10.0.0 could allow a remote attacker to conduct phishing attacks, using an open redirect attack. By persuading a victim to visit a specially crafted Web site, a remote attacker could exploit this vulnerability to spoof the URL displayed to redirect a user to a malicious Web site that would appear to be trusted. This could allow the attacker to obtain highly sensitive information or conduct further attacks against the victim. IBM X-Force ID: 198814

Patch / fix

Is CVE-2021-20534 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Exploit prediction

0.55% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.0 4.5 CVSS:3.0/I:H/S:U/PR:H/UI:R/C:N/AV:N/A:N/AC:L/RC:C/E:U/RL:O
NVD 3.1 3.5 CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N
CNA 3.0 4.5 CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:N
NVD 2.0 4.9 AV:N/AC:M/Au:S/C:P/I:P/A:N

Affected products

  • IBM Security Verify Access Docker

Classification

Weakness
  • CWE-601 URL Redirection to Untrusted Site

References

Sources

Fencer Intel 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.