CVE-2026-77696

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 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

0.39% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 33.5% of scored records. A rank, not a probability.

NVD base score

3.7 (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:L/I:N/A:N

NVD analysis status

Analyzed. NVD last modified this record on 2026-10-08.

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

2026-09-29 15:32Z29 DAYS AGO

Last updated

2026-09-29 16:51Z29 DAYS AGO

Reserved

2026-08-21

Assigning CNA

openssl

Record state

PUBLISHED

Severity

Low (CVSS 3.7)

CNA CVSS vector

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

Weaknesses

• CWE-208Observable Timing DiscrepancyBase

Data version

5.2

Document digest

3a0db3549e264672b26242d1b071a0e79776c55a5891b6185f774d516d0a6bef

• openssl-library.orgOpenSSL Advisoryhttps://openssl-library.org/news/secadv/20260929.txtvendor-advisory
• github.com4.0.3 git commithttps://github.com/openssl/openssl/commit/20b20628d39b2dcc4677194bd68c7c060fa598cbpatch
• github.com3.6.5 git commithttps://github.com/openssl/openssl/commit/1c4aed808a7aea32d2d013049c2e0d9fef164fc9patch
• github.com3.5.9 git commithttps://github.com/openssl/openssl/commit/6b90445a56b99a328ac1feba058abf976504f440patch
• github.com3.4.8 git commithttps://github.com/openssl/openssl/commit/419f5cb519721dceed393dbc524d79e487c72e64patch