N-able says every unauthenticated flaw in the Able2Shell dump is fixed in N-central 2026.4 HF2, and that it has seen scanning but no compromise of hosted servers. The authenticated bugs are still open.
N-able released N-central 2026.4 HF2 for seven flaws disclosed publicly on November 8, after taking hosted environments offline and telling on-premises customers to do the same.
Researchers published exploit code for a critical FortiSIEM path traversal bug that could let unauthenticated attackers run code. The flaw is described as recently patched.
A suspected state-sponsored group used a FortiManager flaw for initial access, then a path traversal bug to gain root and deploy the PeerStitch implant, researchers say.