CVE-2026-110310

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

0.50% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 43.1% of scored records. A rank, not a probability.

NVD base score

6.0 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Awaiting Analysis. NVD last modified this record on 2026-10-16.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

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

2026-10-14 19:37Z14 DAYS AGO

Last updated

2026-10-14 19:46Z14 DAYS AGO

Reserved

2026-10-13

Assigning CNA

AMZN

Record state

PUBLISHED

Severity

Medium (CVSS 6.0)

CNA CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Weaknesses

• CWE-204Observable Response DiscrepancyBase
• CWE-757Selection of Less-Secure Algorithm During Negotiation ('Algorithm Downgrade')Base

Data version

5.2

Document digest

27421efa387bab7247785dad4166f3ad5e48d04e7bc1b3ff22084d8ad667e2cd

• www.nuget.orghttps://www.nuget.org/packages/Amazon.Extensions.S3.Encryption/3.2.2release-notespatch
• www.nuget.orghttps://www.nuget.org/packages/Amazon.Extensions.S3.Encryption/4.0.3release-notespatch
• aws.amazon.comhttps://aws.amazon.com/security/security-bulletins/2026-135-aws/vendor-advisory
• github.comhttps://github.com/aws/amazon-s3-encryption-client-dotnet/security/advisories/GHSA-322w-f6rw-r4fjthird-party-advisory