CVE-2026-31789

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.
• 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

Equal to or higher than the score of 15.3% of scored records. A rank, not a probability.

NVD base score

9.8 (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:H/I:H/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-07-24.

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

2026-04-07 22:00Z6 MO AGO

Last updated

2026-05-12 12:09Z5 MO AGO

Reserved

2026-03-09

Assigning CNA

openssl

Record state

PUBLISHED

Severity

Medium (CVSS 5.8)

CNA CVSS vector

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

Weaknesses

• CWE-787Out-of-bounds WriteBase
• CWE-190Integer Overflow or WraparoundBase

Data version

5.2

Document digest

58f68fd00d939a249a26c4e1225697fcfe29f2aee13fd7d1cbc3a424e59ad63d

• openssl-library.orgOpenSSL Advisoryhttps://openssl-library.org/news/secadv/20260407.txtvendor-advisory
• github.com3.6.2 git commithttps://github.com/openssl/openssl/commit/a24216018e1ede8ff01a4ff5afff7dfbd443e2f9patch
• github.com3.5.6 git commithttps://github.com/openssl/openssl/commit/945b935ac66cc7f1a41f1b849c7c25adb5351f49patch
• github.com3.4.5 git commithttps://github.com/openssl/openssl/commit/364f095b80601db632b0def6a33316967f863bdepatch
• github.com3.3.7 git commithttps://github.com/openssl/openssl/commit/7a9087efd769f362ad9c0e30c7baaa6bbfa65ecfpatch
• github.com3.0.20 git commithttps://github.com/openssl/openssl/commit/a91e537d16d74050dbde50bb0dfb1fe9930f0521patch
• cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-032379.html