CVE-2026-73558

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 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

0.41% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 35.3% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Analyzed. NVD last modified this record on 2026-09-28.

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

2026-08-13 15:06Z2 MO AGO

Last updated

2026-08-13 15:38Z2 MO AGO

Reserved

2026-08-12

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CNA CVSS vector

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

Weaknesses

• CWE-190Integer Overflow or WraparoundBase

Data version

5.2

Document digest

0fdaf48c22e3f8f7e351a5d20b284e3819f57ade65907bbf7c05290974b4f339

• github.comhttps://github.com/vllm-project/vllm/security/advisories/GHSA-7m6h-x95x-82q5x_refsource_CONFIRM
• github.comhttps://github.com/vllm-project/vllm/issues/42860x_refsource_MISC
• github.comhttps://github.com/vllm-project/vllm/pull/49660x_refsource_MISC
• github.comhttps://github.com/vllm-project/vllm/commit/451227cb3ff07989698fed982c2d3e4300257924x_refsource_MISC
• github.comhttps://github.com/vllm-project/vllm/releases/tag/v0.27.0x_refsource_MISC