High [CVE-2026-20028 +21] Cisco Advance Notification for Publication of August 5, 2026, Security Advisories
This high-severity Cisco advisory covers CVE-2026-20028 and CVE-2026-20124 and 20 more CVEs.
Aggregated and source-linked by VulniPulse. Data sources, validation and limitations. This bulletin covers 22 CVEs; its score, affected versions and guidance may apply to different issues within that bulletin.
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Summary
On August 5, 2026, the Cisco Product Security Incident Response Team (PSIRT) published the following advisories: Cisco Security Advisory CVE ID Security Impact Rating CVSS Base Score Cisco Catalyst SD-WAN Software Security Hardening Release: August 2026 CVE-2026-20303
CVE-2026-20304 CVE-2026-20310
CVE-2026-20312 CVE-2026-20313 Critical 9.9 Cisco IOS XE Software Security Hardening Release: August 2026 CVE-2026-20267
CVE-2026-20268 CVE-2026-20269
CVE-2026-20270 CVE-2026-20271
CVE-2026-20272 CVE-2026-20273 Critical 9.8 Cisco Integrated Management Controller Argument Injection Vulnerabilities CVE-2026-20200
CVE-2026-20288 High 8.8 Cisco IOS Software and IOS XE Software Extensible…
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative. Check it before change work.
Official advisory · high-confidence parse· fetched 27 days ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists. Confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 27 days ago·verify at source
Mitigation checklist
- On August 5, 2026, the Cisco Product Security Incident Response Team (PSIRT) will publish advisories to disclose security vulnerability information along with fixed software releases for the following Cisco products: Catalyst SD-WAN Integrated Management Controller (IMC) IOS Software IOS XE Software RoomOS Terminal Services Agent To fully remediate vulnerabilities to be disclosed on August 5, 2026, Cisco strongly recommends that customers upgrade to the fixed software indicated in the advisories.
Official advisory · high-confidence parse· fetched 27 days ago·verify at source
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- CVE-2026-76445Oct 21, 2026Multiple Cisco Products Snort 3 Denial of Service Vulnerability
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