CVE-2026-19642: Out-of-bounds write in the Base64 decoder in Amazon aws-sdk-cpp
AWS · aws-sdk-cpp
Fixed in 1.11.862 · Affected: aws-sdk-cpp before 1.11.862 · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 43% of scored CVEs
DescriptionCVE.org
An out-of-bounds write issue in the Base64 decoder in Amazon aws-sdk-cpp before 1.11.862 might allow a remote authenticated user to cause a crash or heap memory corruption in an application that processes crafted Base64-encoded input. To remediate this issue, users should upgrade to version 1.11.862.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- AWS · aws-sdk-cppup to and including 1.11.861
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- AWS
- Published
- August 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-19642 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.