DANE Client Code · Potential Use-after-free
Affects MicrosoftSource GCVE Database
Mentioned vulnerabilities
Not known to be exploited.
Data as of 30 Oct 2026, 06:59 UTC
Rated by Threat Radar · No CVSS score from NVD or the CNA
- EPSS
- 0.6% chance of exploitation in 30 days – higher than 51% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Exploitation evidence
Disclosed: evidence found.
CVE published 9 Apr 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Microsoft Security Response Center Microsoft | Affected
| Fixed in– |
AI-suggested
A security update fixing these vulnerabilities has been released for the affected OpenSSL 3 versions distributed by SUSE. Users should apply the official patches provided by their vendor to remediate these issues. Patch status is confirmed by the vendor advisory. No additional mitigation steps are specified.
Description
Multiple vulnerabilities including use-after-free, NULL pointer dereferences, heap buffer overflow, and incorrect failure handling were identified in OpenSSL 3 components such as DANE client code and cryptographic operations. These issues affect OpenSSL 3 versions distributed by SUSE and have been assigned CVE identifiers CVE-2026-28387, CVE-2026-28388, CVE-2026-28389, CVE-2026-31789, and CVE-2026-31790. The severity is rated high. A security update addressing these vulnerabilities has been released.
References
- msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-28387.json (opens in a new tab)
- support.microsoft.com/lifecycle (opens in a new tab)
- first.org/cvss (opens in a new tab)
- suse.com/support/security/rating/ (opens in a new tab)
- ftp.suse.com/pub/projects/security/csaf/suse-su-2026_21065-1.json (opens in a new tab)
- suse.com/support/update/announcement/2026/suse-su-202621065-1/ (opens in a new tab)
- lists.suse.com/pipermail/sle-updates/2026-April/045459.html (opens in a new tab)
- bugzilla.suse.com/1260441 (opens in a new tab)
- bugzilla.suse.com/1260442 (opens in a new tab)
- bugzilla.suse.com/1260443 (opens in a new tab)
- bugzilla.suse.com/1260444 (opens in a new tab)
- bugzilla.suse.com/1260445 (opens in a new tab)
- suse.com/security/cve/CVE-2026-28387/ (opens in a new tab)
- suse.com/security/cve/CVE-2026-28388/ (opens in a new tab)
- suse.com/security/cve/CVE-2026-28389/ (opens in a new tab)
- suse.com/security/cve/CVE-2026-31789/ (opens in a new tab)
- suse.com/security/cve/CVE-2026-31790/ (opens in a new tab)