NetXMS Support Forum

Any idea when the agents and server will be patched to mitigate openSSL vulnerabilities: CVE-2026-28387, CVE-2026-28388, CVE-2026-28389, CVE-2026-28390, CVE-2026-31789, CVE-2026-31790, CVE-2026-34180, CVE-2026-34182, CVE-2026-42766, CVE-2026-42767, CVE-2026-42770, CVE-2026-45445, CVE-2026-45446, CVE-2026-45447, CVE-2026-7383, CVE-2026-9076

Hi,

Bundled OpenSSL only exists in the Windows builds - the agent, server, client and web UI installers ship libcrypto-3/libssl-3 DLLs. Linux packages link against the system OpenSSL and the Docker images inherit Debian's, so on those platforms your distribution's updates already cover this and there's nothing for us to ship.

None of the 16 are exploitable in NetXMS. They land in code paths we don't use at all - CMS, PKCS#7, DANE, CRMF, OCB/SIV and the RSA KEM. NXCP encryption uses RSA with OAEP padding, and certificate revocation is handled by our own code rather than OpenSSL's CRL machinery. The remaining few need gigabyte-scale inputs that a TLS handshake can't deliver. That includes CVE-2026-45447, the only High on your list: PKCS7_verify() is not called anywhere in the codebase.

The Windows DLLs will still be updated, because version scanners flag them regardless of reachability. It's a bigger change than a patch bump this time: OpenSSL 3.0 reached end of life on 7 September and 3.0.22 is the final release of that branch, so we're moving the Windows build to 3.5 LTS rather than to a newer 3.0. Tracked in https://github.com/netxms/netxms/issues/3643 - no date yet.

If you need it cleared sooner, you can drop newer libcrypto-3/libssl-3 DLLs into the agent's bin directory yourself; OpenSSL keeps ABI stable across the 3.x series, so 3.5 works in place. Two caveats: they'll be overwritten on the next agent upgrade, and they won't carry our code signature.

We just published release 6.2.5, Windows packages now include latest OpenSSL 3.5.

Thank you Victor and Alex.  I appreciate the response!