Quick answers
- Is CVE-2026-61758 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-61758 being exploited in the wild.
- How severe is CVE-2026-61758?
- High severity, with a CVSS score of 7.8, published 1 September 2026.
- Which products and versions are affected?
- NVIDIA Megatron Bridge.
- Is there a fix for CVE-2026-61758?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-61758 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-61758?
- Check whether you run Nvidia Megatron-Bridge or Nvidia Nemo Megatron Bridge. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The vulnerability is a deserialization of untrusted data issue in NVIDIA Megatron Bridge. The root cause stems from unsafe deserialization of user-controlled input, likely from network sources or external files. An attacker on the network can trigger code execution by crafting malicious serialized payloads. No authentication is required if Megatron Bridge processes remote input. A successful exploit enables arbitrary code execution, data tampering, and information disclosure on affected systems.
Affected products
- NVIDIA Megatron Bridge
Timeline
- 2026-09-01: disclosed