CVE-2026-63349

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• 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

0.10% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 1.0% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

Awaiting Analysis. NVD last modified this record on 2026-09-25.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

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

2026-09-18 17:02Z1 MO AGO

Last updated

2026-09-24 21:05Z1 MO AGO

Reserved

2026-07-16

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

High (CVSS 7.0)

CNA CVSS vector

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

Weaknesses

• CWE-266Incorrect Privilege AssignmentBase
• CWE-269Improper Privilege ManagementClass
• CWE-648Incorrect Use of Privileged APIsBase

Data version

5.2

Document digest

e70d6b2eaf63217271420b8e15b402972cf0b3aab7a5b44ceede8b89c34583c5

• github.comhttps://github.com/agronholm/anyio/security/advisories/GHSA-3w57-8xmc-8v26x_refsource_CONFIRM
• github.comhttps://github.com/agronholm/anyio/pull/1209x_refsource_MISC
• github.comhttps://github.com/agronholm/anyio/commit/eb562e6462ee46b1904e50b02ce00a858cdeb200x_refsource_MISC
• github.comhttps://github.com/agronholm/anyio/releases/tag/4.14.2x_refsource_MISC