CVE-2026-58207

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 ImpactpartialSuccessful exploitation gives limited 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

0.56% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 46.3% of scored records. A rank, not a probability.

NVD base score

6.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD analysis status

Analyzed. NVD last modified this record on 2026-10-25.

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

2026-07-08 20:15Z3 MO AGO

Last updated

2026-07-09 14:41Z3 MO AGO

Reserved

2026-06-29

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

High (CVSS 7.7)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Weaknesses

• CWE-190Integer Overflow or WraparoundBase

Data version

5.2

Document digest

cf9d368013f78b1ad1972b61c597fb7d95e97f8f8466e85a0483c3ec905d1e5f

• github.comhttps://github.com/nats-io/nats-server/security/advisories/GHSA-q59r-vq66-pxc2x_refsource_CONFIRM
• github.comhttps://github.com/nats-io/nats-server/commit/2ae047139e37a38cb01e259a67909e7a39fa38e9x_refsource_MISC
• github.comhttps://github.com/nats-io/nats-server/commit/894d9411927681d66ce349bf1afe49608dc0c1a3x_refsource_MISC
• github.comhttps://github.com/nats-io/nats-server/releases/tag/v2.12.12x_refsource_MISC
• github.comhttps://github.com/nats-io/nats-server/releases/tag/v2.14.3x_refsource_MISC