What is CVE-2021-29676?

CVE-2021-29676 is a medium-severity vulnerability in IBM Security Verify, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 5.4/10. Published 2021-06-25.

How severe is CVE-2021-29676?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Vulnerability in IBM Security Verify

CVE-2021-29676

IBM Security Verify (IBM Security Verify Privilege Vault 10.9.66) is vulnerable to link injection. By persuading a victim to click on a specially-crafted URL link, a remote attacker could exploit this vulnerability to conduct various attacks against the vulnerable system, including cross-site scripting, cache poisoning or session hijacking

Published 2021-06-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.008 (56.1th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 56.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

IBM Security Verify
IBM Security Verify Privilege Vault — versions 10.9.66

Weakness classification (CWE)

CWE-74 — Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection)

References

www.ibm.com/support/pages/node/6467045 (Patch, Vendor Advisory)
exchange.xforce.ibmcloud.com/vulnerabilities/199575 (VDB Entry, vdb-entry)

Frequently asked questions

What is CVE-2021-29676?: CVE-2021-29676 is a medium-severity vulnerability in IBM Security Verify, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 5.4/10. Published 2021-06-25.
How severe is CVE-2021-29676?: Medium severity. CVSS v3 base score is 5.4 out of 10.