CVE-2026-63388
CVE-2026-63388: 2 tracked advisory records across Red Hat, Veeam. Compare vendor sources and published fix guidance.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityHigh8.4
High [CVE-2026-63388] Arbitrary code execution via heap out-of-bounds write in AF_UNIX handling
CVE-2026-63388Source published Source updated
Libevent is an event notification library. Prior to 2.1.13 and 2.2.2-alpha, libevent has a heap out-of-bounds write in bufferevent_sock.c when bufferevent_socket_set_conn_address_ copies a kernel-supplied AF_UNIX peer address into bufferevent_private.conn_address. Release builds compiled with NDEBUG disable the EVUTIL_ASSERT length guard, and the evhttp accept path can pass a 110-byte sockaddr from accept() into the 28-byte field. An unauthenticated local peer able to connect to an AF_UNIX listener can overwrite the adjacent dns_request pointer and heap data, causing memory corruption with confidentiality, integrity, and availability impact. A flaw was found in Libevent. A heap out-of-bounds write vulnerability in the `bufferevent_socket_set_conn_address_` function allows an…
- Affected products in this advisory
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Cert Manager support for Red Hat OpenShift release 1.20
6 more entries in the full advisory.
- Source-reported affected versions
- < 2.1.13
- < 2.2.2-alpha
- Source-reported fixed versions
- 2.1.13
- 2.2.2
- libevent-0:2.1.13-1.el10_2
- libevent-0:2.1.8-11.el8_10
25 more entries in the full advisory.
- Mitigation guidance
- Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Veeam
1 advisory- Advisory severityCritical
Critical [CVE-2020-14040 +67] List of Security Fixes and Improvements in Veeam Kasten for Kubernetes
KB4825Source published
This bulletin covers 68 CVEs. The products, versions, score and guidance below describe the bulletin; check its source for applicability to this specific CVE.
List of Security Fixes and Improvements in Veeam Kasten for Kubernetes KB ID: 4825 Product: Kasten K10 by Veeam | 3 | 5 | 5.5 | 6 | 6.5 Published: 2026-03-02 Last Modified: Purpose This article aims to provide our customers' security and compliance teams with detailed information on security improvements. - Veeam Kasten for Kubernetes — Release Notes - Also resolves 8 Medium severity CVEs in the same and other packages. - Upgraded to latest UBI base image to resolve multiple CVEs in base OS packages. - Updated the Go runtime to resolve additional upstream Go CVEs. - Updated the bundled Prometheus Helm chart to resolve security issues. - Upgraded the Prometheus base image to resolve GHSA-hrxh-6v49-42gf - GitHub Advisory - Upgraded Dex image dependencies to resolve multiple Critical and…
- Related products — impact not confirmed
- No product details extracted. Check the source bulletin.
- Source-reported affected versions
- Affected-version details not available in this record.
- Source-reported fixed versions
- 8.5.10
- 8.5.5
- 1.26.1
- 8.5.3
20 more entries in the full advisory.
- Mitigation guidance
- List of Security Fixes and Improvements in Veeam Kasten for Kubernetes KB ID: 4825 Product: Veeam Kasten for Kubernetes | 7 | 7.5 | 8 | 8.5 | 9 Kasten K10 by Veeam | 3 | 5 | 5.5 | 6 | 6.5 Published: 2026-03-02 Last Modified: 2026-10-06 Purpose This article describes all security-related fixes and improvements introduced in each release or update of Veeam Kasten for Kubernetes.
- It is recommended to upgrade Veeam Kasten and to refresh the token by manually logging out.
- Mitigation: Configure a bucket-level Default Object Lock retention so the object store stamps new objects at write time, or upgrade to Kasten 8.5.10.
- Veeam Kasten for Kubernetes 8.5.5 Upgrade to Go 1.26.1 to address CVE-2026-25679 and CVE-2026-27142 Updated the UBI base image to address CVE-2026-4111 Veeam Kasten for Kubernetes 8.5.3 Upgrade to Go 1.25.7 to address CVE-2025-61732.
4 more entries in the full advisory.
- Workarounds
- Veeam Kasten for Kubernetes 8.0.14 Improved logging security for specific block mode datamover upload Pod invocations.
Android app · Google Play
Turn CVE research into alerts on your phone.
Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 34 official vendor sources and 160+ reviewed platform categories.