CVE-2026-34183

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.
• 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

1.05% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 61.9% of scored records. A rank, not a probability.

NVD base score

7.5 (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:N/I:N/A:H

NVD analysis status

Analyzed. NVD last modified this record on 2026-07-23.

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

2026-06-09 16:03Z2 MO AGO

Last updated

2026-06-10 15:51Z2 MO AGO

Reserved

2026-03-26

Assigning CNA

openssl

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

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

Weaknesses

• CWE-1325Improperly Controlled Sequential Memory AllocationBase
• CWE-770Allocation of Resources Without Limits or ThrottlingBase

Data version

5.2

Document digest

aea137c3a2242353d9d5620125190f57eef47a1921264054ce9daa631454483c

• openssl-library.orgOpenSSL Advisoryhttps://openssl-library.org/news/secadv/20260609.txtvendor-advisory
• github.com4.0.1 git commithttps://github.com/openssl/openssl/commit/fbaa83859c01ad64f497b757aaf51be7d05ed9ebpatch
• github.com3.6.3 git commithttps://github.com/openssl/openssl/commit/5b306efb0b3779dfdd0803b4afc9d08c91f11517patch
• github.com3.5.7 git commithttps://github.com/openssl/openssl/commit/7d06955ebe0ecf8adfd4c1e92018586da47ef9acpatch
• github.com3.4.6 git commithttps://github.com/openssl/openssl/commit/d2e9efbe4900a373227deb136e8665401404ffacpatch