CVE-2025-70103

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.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• 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

0.43% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 37.2% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Deferred. NVD last modified this record on 2026-10-12.

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

2026-05-27 00:00Z5 MO AGO

Last updated

2026-05-30 19:30Z5 MO AGO

Reserved

2026-01-09

Assigning CNA

mitre

Record state

PUBLISHED

Severity

High (CVSS 7.3)

CNA CVSS vector

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

Weaknesses

• CWE-122Heap-based Buffer OverflowVariant

Data version

5.2

Document digest

ce7119a1bcac669f0ef1c03a595f308bc0b816da8bb020b6c41955049e0f3aaa

• github.comhttps://github.com/libjxl/libjxl/issues/4337
• github.comhttps://github.com/libjxl/libjxl/pull/4338
• github.comhttps://github.com/sigdevel/pocs/blob/main/res/libjxl/2025/2
• infosec.exchangehttps://infosec.exchange/@sigdevel/116642233929409910
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2026/05/30/7