CVE-2026-90777

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.73% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 53.8% of scored records. A rank, not a probability.

NVD base score

8.7 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Deferred. NVD last modified this record on 2026-09-23.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-09-13 11:42Z1 MO AGO

Last updated

2026-09-24 14:21Z1 MO AGO

Reserved

2026-09-13

Assigning CNA

VulnCheck

Record state

PUBLISHED

Severity

High (CVSS 8.7)

CNA CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Weaknesses

• CWE-502Deserialization of Untrusted DataBase

Data version

5.2

Document digest

3147698bb45cf8d81b3754a88c534b821a0db79bee9a132e4bb6d832bf68f56b

• github.comGitHub Security Advisory (GHSA-64f6-3gqc-r926)https://github.com/espnet/espnet/security/advisories/GHSA-64f6-3gqc-r926vendor-advisory
• github.comPatch Commithttps://github.com/espnet/espnet/commit/91ca045fc179f29bc7b7fe05cd852aea65310003patch
• github.comUnsafe torch.load call at v.202511https://github.com/espnet/espnet/blob/v.202511/espnet2/torch_utils/load_pretrained_model.py#L99technical-description
• github.comESPnet v.202609 Release Noteshttps://github.com/espnet/espnet/releases/tag/v.202609release-notes
• github.comhttps://github.com/espnet/espnetproduct
• www.vulncheck.comVulnCheck Advisory: ESPnet before 202609 Remote Code Execution via Unsafe Deserializationhttps://www.vulncheck.com/advisories/espnet-before-202609-remote-code-execution-via-unsafe-deserializationthird-party-advisory