- Published
- Source
- Unit 42
- Reported by
- 5 publishers
- Filed under
- Malware & exploits
- Vulnerabilities
- 1 CVE Exploited
Ransomware operators including Spikey Scorpius (aka Qilin) and Tarnished Scorpius (aka Inc) are exploiting PAN-OS vulnerability CVE-2026-0257.
If you run the affected product
- Find every instance – especially the ones reachable from the internet.
- Apply the vendor's patch or mitigation now: exploited flaws are fixed in days, not at the next patch cycle.
- Then check for signs it was used before you patched: web shells, new accounts, unusual outbound traffic.
More helpCISA's Known Exploited Vulnerabilities catalogue (opens in a new tab)
Also reported by 4 more publishers
The vulnerabilities in this story
CVE-2026-0257 in the NVD (opens in a new tab)
- CVSS9.1Critical
- CISA KEVExploitedon the list since 29 May · used in ransomware
Exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog (CC0). Exploit prediction: EPSS by FIRST. This product uses the NVD API but is not endorsed or certified by the NVD.
Defender’s notebook
The attacker technique behind this story, in MITRE’s terms – and what to check in your own estate.
Data Encrypted for Impact
ImpactWhat a defender checks
- Isolate affected hosts from the network to stop the spread.
- Confirm backups are offline and restorable – then test a restore.
- Hunt for what came first: new admin accounts, disabled security tools, remote-access software.
Build the skillBlue Team Engineer · Incident Management & Response Engineering
© 2026 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation. MITRE ATT&CK and ATT&CK are registered trademarks of The MITRE Corporation.
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