What is CVE-2026-19721?

CVE-2026-19721 is a low-severity vulnerability, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 3.3/10. Published 2026-11-04.

How severe is CVE-2026-19721?

Low severity. CVSS v3 base score is 3.3 out of 10.

CVE-2026-19721

CVE-2026-19721

Improper restriction of XML external entity reference vulnerability in TÜBİTAK BİLGEM Software Technologies Research Institute İmzager allows Serialized Data External Linking. This issue affects İmzager: from 2.10.5 before 2.10.7.

Vulnerability class: XXE (XML External Entity)

Published 2026-11-04 · last modified 2026-11-04.

CVSS v3 metric

CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Weakness classification (CWE)

CWE-611 — Improper Restriction of XML External Entity Reference (XXE)

References

siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-1456 (government-resource)

Frequently asked questions

What is CVE-2026-19721?: CVE-2026-19721 is a low-severity vulnerability, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 3.3/10. Published 2026-11-04.
How severe is CVE-2026-19721?: Low severity. CVSS v3 base score is 3.3 out of 10.