CVE-2026-53264

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

0.24% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 15.0% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-07-29.

Red Hat severity

Important. 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

2026-06-25 08:39Z2 MO AGO

Last updated

2026-08-05 12:34Z1 MO AGO

Reserved

2026-06-09

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

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

Weaknesses

• CWE-416Use After FreeVariant
• CWE-364Signal Handler Race ConditionBase

Data version

5.2

Document digest

09fa4efaa2056cdf4b4a0d0c1fbf9db38ed470567476c199c8a6846fefbcb858

• git.kernel.orghttps://git.kernel.org/stable/c/98b2e40879abf0245be5a5b7af69e0f6ff524ac3
• git.kernel.orghttps://git.kernel.org/stable/c/18af5d2ef0c4f65787fd1280c8b23286b9f2a835
• git.kernel.orghttps://git.kernel.org/stable/c/1f1b98fea6b9ea30507d0f2fbff6750292d097e2
• git.kernel.orghttps://git.kernel.org/stable/c/8b136f18ac4b2ace5aaad3305b3f8a5d8165a009
• git.kernel.orghttps://git.kernel.org/stable/c/5dd51e09020c65aa53cf128e5e3517cd53b3c113
• git.kernel.orghttps://git.kernel.org/stable/c/b60e9391142e983fab2be53497aa8f71fdd09cd5
• git.kernel.orghttps://git.kernel.org/stable/c/91d105d2cbe002f9c7b43a6183adedc37e1da1f7
• git.kernel.orghttps://git.kernel.org/stable/c/5057e1aca011e51ef51498c940ef96f3d3e8a305
• starlabs.sghttps://starlabs.sg/blog/2026/07-when-ai-makes-0-days-feel-like-n-days/exploit