CVE

CVE-2026-63077

P1⬤ KNOWN RANSOMWARE USE

JetBrains TeamCity Deserialization of Untrusted Data Vulnerability

JetBrains · TeamCity

Date added (CISA)

2026-08-05

Remediation due

2026-08-08

Known ransomware use

Yes

Remediation priority

P1 — known ransomware use · past CISA due date

Associated with

Related to

Lazarus Group (TraderTraitor cluster) / APT38 / BlueNoroff · SPECTREcampaignCorrelated cluster2026-09-16
DysphoriacampaignCorrelated cluster2026-08-24

ATT&CK mapping

No ATT&CK mapping yet

The CTID Mappings Explorer hasn't published an exploitation/impact technique mapping for this CVE yet.