CVE-2026-42767

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

0.56% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 44.2% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.1/AV:N/AC:H/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

Low. 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 07:48Z2 MO AGO

Reserved

2026-04-29

Assigning CNA

openssl

Record state

PUBLISHED

Severity

Medium (CVSS 5.9)

CNA CVSS vector

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

Weaknesses

• CWE-476NULL Pointer DereferenceBase

Data version

5.2

Document digest

7196c058165e6bc02341465d07dab33d599ec98aa99064438bdd0338dbe91a45

• openssl-library.orgOpenSSL Advisoryhttps://openssl-library.org/news/secadv/20260609.txtvendor-advisory
• github.com4.0.1 git commithttps://github.com/openssl/openssl/commit/b90ff3b1bd33b1c18e6a09936d097c2eddef8873patch
• github.com3.6.3 git commithttps://github.com/openssl/openssl/commit/e6f912907fc2ec82a0fd07aae55172c5e5e3d90dpatch
• github.com3.5.7 git commithttps://github.com/openssl/openssl/commit/810b722f772652ad48042bcc7ab07e3414b11d0fpatch
• github.com3.4.6 git commithttps://github.com/openssl/openssl/commit/665d5254083affde9982efca7c41dd01cacc8774patch
• github.com3.0.21 git commithttps://github.com/openssl/openssl/commit/61a86a8cd73546c9fea916f3d304c1293e05c046patch