CVE-2026-48029

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

0.35% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 29.4% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Analyzed. NVD last modified this record on 2026-10-24.

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

2026-07-22 14:13Z3 MO AGO

Last updated

2026-07-22 15:20Z3 MO AGO

Reserved

2026-05-20

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

High (CVSS 7.1)

CNA CVSS vector

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

Weaknesses

• CWE-125Out-of-bounds ReadBase
• CWE-191Integer Underflow (Wrap or Wraparound)Base

Data version

5.2

Document digest

aaa7b9b758d21b02e4456a087e5c8520c0862351e6f58f8d9a419c3988934770

• github.comhttps://github.com/strukturag/libheif/security/advisories/GHSA-6x5f-qchq-cxqvx_refsource_CONFIRM
• github.comhttps://github.com/strukturag/libheif/commit/e523ec0bf379110b7c33d4c159f8b1202d332157x_refsource_MISC