VDB
RHSA-2026:2077
RHSA-2026:2077
PUBLISHED
CVSS 9.800000190734863 CRITICAL
A flaw was found in OpenSSL. A remote attacker can exploit a stack buffer overflow vulnerability by supplying a crafted Cryptographic Message Syntax (CMS) message with an oversized Initialization Vector (IV) when parsing AuthEnvelopedData structures that use Authenticated Encryption with Associated Data (AEAD) ciphers such as AES-GCM. This can lead to a crash, causing a Denial of Service (DoS), or potentially allow for remote code execution.
Risk Scores
CVSS 3.1
9.800000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | rhcos-aarch64-4.20.9.6.202602050328-0 as a component of Red Hat OpenShift Container Platform 4.20 | 4.20.9.6.202602050328-0 |
| Red Hat | rhcos-ppc64le-4.20.9.6.202602050328-0 as a component of Red Hat OpenShift Container Platform 4.20 | 4.20.9.6.202602050328-0 |
| Red Hat | rhcos-s390x-4.20.9.6.202602050328-0 as a component of Red Hat OpenShift Container Platform 4.20 | 4.20.9.6.202602050328-0 |
| Red Hat | rhcos-x86_64-4.20.9.6.202602050328-0 as a component of Red Hat OpenShift Container Platform 4.20 | 4.20.9.6.202602050328-0 |
Timeline
- Feb 11, 2026 CVE Published
- Jul 27, 2026 CVE Updated
- Jul 27, 2026 Distribution Patch
- Jul 27, 2026 Distribution Patch
- Jul 27, 2026 Security Advisory
- Jul 27, 2026 Security Advisory
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2430376 issue
- https://access.redhat.com/errata/RHSA-2026:2077 advisory
- https://access.redhat.com/security/updates/classification/#important advisory
- https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_2077.json advisory
- https://access.redhat.com/security/cve/CVE-2025-15467 advisory
- https://www.cve.org/CVERecord?id=CVE-2025-15467 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2025-15467 advisory