{"metadata": {"vulnerability": "CVE-2026-20355", "count": 29, "kinds": {"milestone": 6, "sighting": 8, "kev": 0, "other": 15}}, "data": [{"timestamp": "2025-08-04T16:30:00Z", "date_only": false, "value": "2025-08-04T16:30:00Z", "kind": "other", "label": "Document generated", "source": "csaf_ncscnl \u00b7 NCSC-2026-0338", "record": "NCSC-2026-0338", "field": "document.tracking.generator.date"}, {"timestamp": "2025-10-08T11:59:15.414Z", "date_only": false, "value": "2025-10-08T11:59:15.414Z", "kind": "milestone", "label": "Reserved", "source": "cvelistv5", "record": "CVE-2026-20355", "field": "cveMetadata.dateReserved"}, {"timestamp": "2026-09-02T15:54:00Z", "date_only": false, "value": "2026-09-02T15:54:00+00:00", "kind": "other", "label": "Advisory revision", "source": "csaf_cisco \u00b7 CISCO-SA-ESA-SMIME-DISC-DZW4REDY", "record": "CISCO-SA-ESA-SMIME-DISC-DZW4REDY", "field": "document.tracking.revision_history.0.date"}, {"timestamp": "2026-09-02T16:00:00Z", "date_only": false, "value": "2026-09-02T16:00:00+00:00", "kind": "milestone", "label": "Published", "source": "csaf_cisco \u00b7 CISCO-SA-ESA-SMIME-DISC-DZW4REDY", "record": "CISCO-SA-ESA-SMIME-DISC-DZW4REDY", "field": "document.tracking.initial_release_date", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2026-09-02T16:14:32.732Z", "date_only": false, "value": "2026-09-02T16:14:32.732Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-20355", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2026-09-02T16:49:13.406Z", "date_only": false, "value": "2026-09-02T16:49:13.406894Z", "kind": "other", "label": "Recorded", "source": "cvelistv5 / CISA-ADP", "record": "CVE-2026-20355", "field": "containers.adp.0.metrics.0.other.content.timestamp"}, {"timestamp": "2026-09-02T16:49:13.406Z", "date_only": false, "value": "2026-09-02T16:49:13.406894Z", "kind": "other", "label": "Recorded", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-20355", "record": "FKIE_CVE-2026-20355", "field": "metrics.ssvcV203.0.ssvcData.timestamp"}, {"timestamp": "2026-09-02T17:17:34Z", "date_only": false, "value": "2026-09-02T17:17:34Z", "kind": "other", "label": "Nvd published at", "source": "github \u00b7 GHSA-4RJC-G85J-X387", "record": "GHSA-4RJC-G85J-X387", "field": "database_specific.nvd_published_at"}, {"timestamp": "2026-09-02T17:17:34.027Z", "date_only": false, "value": "2026-09-02T17:17:34.027", "kind": "milestone", "label": "Published", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-20355", "record": "FKIE_CVE-2026-20355", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2026-09-02T17:58:57.899Z", "date_only": false, "value": "2026-09-02T17:58:57.899Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / CISA-ADP", "record": "CVE-2026-20355", "field": "containers.adp.0.providerMetadata.dateUpdated"}, {"timestamp": "2026-09-02T18:32:27Z", "date_only": false, "value": "2026-09-02T18:32:27Z", "kind": "milestone", "label": "Published", "source": "github \u00b7 GHSA-4RJC-G85J-X387", "record": "GHSA-4RJC-G85J-X387", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2026-09-02T18:32:27Z", "date_only": false, "value": "2026-09-02T18:32:27Z", "kind": "other", "label": "Updated", "source": "github \u00b7 GHSA-4RJC-G85J-X387", "record": "GHSA-4RJC-G85J-X387", "field": "modified"}, {"timestamp": "2026-09-02T19:23:13.660Z", "date_only": false, "value": "2026-09-02T19:23:13.660", "kind": "other", "label": "Updated", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-20355", "record": "FKIE_CVE-2026-20355", "field": "lastModified"}, {"timestamp": "2026-09-03T08:45:03.573Z", "date_only": false, "value": "2026-09-03T08:45:03.573780Z", "kind": "sighting", "label": "Seen", "source": "https://www.govcert.gov.hk/en/alerts_detail.php?id=2046", "record": "CVE-2026-20355", "field": "creation_timestamp", "uuid": "c71fe448-b4a1-49c8-9d82-d1a87eb201ab", "url": "https://www.govcert.gov.hk/en/alerts_detail.php?id=2046"}, {"timestamp": "2026-09-03T08:46:09.958Z", "date_only": false, "value": "2026-09-03T08:46:09.958583Z", "kind": "sighting", "label": "Seen", "source": "https://www.kyberturvallisuuskeskus.fi/fi/haavoittuvuudet/haavoittuvuus-2026-24", "record": "CVE-2026-20355", "field": "creation_timestamp", "uuid": "2ae72c78-d277-4378-9710-a93acb5c146b", "url": "https://www.kyberturvallisuuskeskus.fi/fi/haavoittuvuudet/haavoittuvuus-2026-24"}, {"timestamp": "2026-09-03T10:44:22.318Z", "date_only": false, "value": "2026-09-03T10:44:22.318657Z", "kind": "sighting", "label": "Seen", "source": "https://bsky.app/profile/infosecbriefly.bsky.social/post/3mumbetpumm2m", "record": "CVE-2026-20355", "field": "creation_timestamp", "uuid": "c0781b1c-06f8-45cb-8360-a136da561435", "content": "Two medium-severity Secure Email S/MIME decryption vulnerabilities (CVE-2026-20354, CVE-2026-20355) could enable MitM attackers to obtain plaintext from encrypted email traffic.\n", "url": "https://bsky.app/profile/infosecbriefly.bsky.social/post/3mumbetpumm2m"}, {"timestamp": "2026-09-03T13:09:49.681Z", "date_only": false, "value": "2026-09-03T13:09:49.681702Z", "kind": "other", "label": "Advisory revision", "source": "csaf_ncscnl \u00b7 NCSC-2026-0338", "record": "NCSC-2026-0338", "field": "document.tracking.revision_history.0.date"}, {"timestamp": "2026-09-03T13:09:49.681Z", "date_only": false, "value": "2026-09-03T13:09:49.681702Z", "kind": "milestone", "label": "Published", "source": "csaf_ncscnl \u00b7 NCSC-2026-0338", "record": "NCSC-2026-0338", "field": "document.tracking.initial_release_date", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2026-09-03T13:09:49.681Z", "date_only": false, "value": "2026-09-03T13:09:49.681702Z", "kind": "other", "label": "Updated", "source": "csaf_ncscnl \u00b7 NCSC-2026-0338", "record": "NCSC-2026-0338", "field": "document.tracking.current_release_date"}, {"timestamp": "2026-09-03T16:00:06.424Z", "date_only": false, "value": "2026-09-03T16:00:06.424190Z", "kind": "sighting", "label": "Seen", "source": "https://t.me/pphm_HackerNews/2985", "record": "CVE-2026-20355", "field": "creation_timestamp", "uuid": "1e752872-2c93-4c7c-aa1c-26be8eaf6704", "content": "\ud83d\udd34 Cisco Warns of Unpatched Secure Email Flaws, Patches Critical Switch Vulnerabilities\n\nCisco on Wednesday warned that two unpatched vulnerabilities in its enterprise email security product Secure Email have been publicly disclosed.\n\nThe two flaws, tracked as CVE-2026-20354 and CVE-2026-20355, are medium-severity issues affecting the Secure/Multipurpose Internet Mail Extensions (S/MIME) decryption functionality of the threat protection solution.\n\nAccording to Cisco, insufficient validation of message integrity can allow an attacker to intercept and modify traffic between email gateways using a man-in-the-middle (MitM) technique.", "url": "https://t.me/pphm_HackerNews/2985"}, {"timestamp": "2026-09-03T19:00:05.684Z", "date_only": false, "value": "2026-09-03T19:00:05.684930Z", "kind": "sighting", "label": "Seen", "source": "https://t.me/true_secator/8577", "record": "CVE-2026-20355", "field": "creation_timestamp", "uuid": "e5fc4f87-6778-45ab-987c-d53751ccf5cc", "content": "Cisco \u043f\u0440\u0435\u0434\u0443\u043f\u0440\u0435\u0436\u0434\u0430\u0435\u0442 \u043e \u0440\u0430\u0441\u043a\u0440\u044b\u0442\u0438\u0438 \u0434\u0432\u0443\u0445 \u043d\u0435\u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u043d\u044b\u0445 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439 \u0432 \u0441\u0438\u0441\u0442\u0435\u043c\u0435 Secure Email \u0438 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0438 \u043a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439 \u043a\u043e\u043c\u043c\u0443\u0442\u0430\u0442\u043e\u0440\u043e\u0432.\n\n\u041f\u0443\u0431\u043b\u0438\u0447\u043d\u043e \u0440\u0430\u0441\u043a\u0440\u044b\u0442\u044b\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 S/MIME \u043c\u043e\u0433\u0443\u0442 \u043f\u0440\u0438\u0432\u0435\u0441\u0442\u0438 \u043a \u0443\u0442\u0435\u0447\u043a\u0435 \u0437\u0430\u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0433\u043e \u0441\u043e\u0434\u0435\u0440\u0436\u0438\u043c\u043e\u0433\u043e \u044d\u043b\u0435\u043a\u0442\u0440\u043e\u043d\u043d\u044b\u0445 \u043f\u0438\u0441\u0435\u043c, \u0430 \u043a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u043e\u0448\u0438\u0431\u043a\u0438 \u0432 IOS XR \u0438 Nexus \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0442 \u0440\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u0442\u044c \u0443\u0434\u0430\u043b\u0435\u043d\u043d\u043e\u0435 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u043a\u043e\u0434\u0430 \u0438 \u043e\u0431\u0445\u043e\u0434 \u0430\u0443\u0442\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438.\n\nCVE-2026-20354\u00a0\u0438\u00a0CVE-2026-20355 \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0442 \u0441\u043e\u0431\u043e\u0439 \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u044b \u0441\u0440\u0435\u0434\u043d\u0435\u0439 \u0441\u0442\u0435\u043f\u0435\u043d\u0438 \u0441\u0435\u0440\u044c\u0435\u0437\u043d\u043e\u0441\u0442\u0438, \u0437\u0430\u0442\u0440\u0430\u0433\u0438\u0432\u0430\u044e\u0449\u0438\u0435 \u0444\u0443\u043d\u043a\u0446\u0438\u043e\u043d\u0430\u043b\u044c\u043d\u043e\u0441\u0442\u044c \u0440\u0430\u0441\u0448\u0438\u0444\u0440\u043e\u0432\u043a\u0438 Secure/Multipurpose Internet Mail Extensions (S/MIME) \u0432 \u0440\u0435\u0448\u0435\u043d\u0438\u0438 \u0434\u043b\u044f \u0437\u0430\u0449\u0438\u0442\u044b \u043e\u0442 \u0443\u0433\u0440\u043e\u0437.\n\n\u041f\u043e \u0434\u0430\u043d\u043d\u044b\u043c Cisco, \u043d\u0435\u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u0430\u044f \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0430 \u0446\u0435\u043b\u043e\u0441\u0442\u043d\u043e\u0441\u0442\u0438 \u0441\u043e\u043e\u0431\u0449\u0435\u043d\u0438\u0439 \u043c\u043e\u0436\u0435\u0442 \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0442\u044c \u0437\u043b\u043e\u0443\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u0438\u043a\u0443 \u043f\u0435\u0440\u0435\u0445\u0432\u0430\u0442\u044b\u0432\u0430\u0442\u044c \u0438 \u0438\u0437\u043c\u0435\u043d\u044f\u0442\u044c \u0442\u0440\u0430\u0444\u0438\u043a \u043c\u0435\u0436\u0434\u0443 \u043f\u043e\u0447\u0442\u043e\u0432\u044b\u043c\u0438 \u0448\u043b\u044e\u0437\u0430\u043c\u0438, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044f \u043c\u0435\u0442\u043e\u0434 \u0430\u0442\u0430\u043a\u0438 MitM.\n\n\u0423\u0441\u043f\u0435\u0448\u043d\u0430\u044f \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043c\u043e\u0436\u0435\u0442 \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0442\u044c \u0437\u043b\u043e\u0443\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u0438\u043a\u0443 \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u0441\u043e\u0434\u0435\u0440\u0436\u0438\u043c\u043e\u0435 \u0437\u0430\u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0433\u043e \u0441\u043e\u043e\u0431\u0449\u0435\u043d\u0438\u044f \u0432 \u043e\u0442\u043a\u0440\u044b\u0442\u043e\u043c \u0432\u0438\u0434\u0435. \n\n\u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u0437\u0430\u0442\u0440\u0430\u0433\u0438\u0432\u0430\u0435\u0442 \u0432\u0441\u0435 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430 Secure Email, \u0440\u0430\u0431\u043e\u0442\u0430\u044e\u0449\u0438\u0435 \u043f\u043e\u0434 \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0435\u043c AsyncOS \u0432\u0435\u0440\u0441\u0438\u0438 16.5.0 \u0438\u043b\u0438 \u0431\u043e\u043b\u0435\u0435 \u0440\u0430\u043d\u043d\u0438\u0445 \u0432\u0435\u0440\u0441\u0438\u0439 \u0441 \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u043d\u043e\u0439 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u043e\u0439 S/MIME.\n\nCisco \u043f\u0440\u0435\u0434\u0443\u043f\u0440\u0435\u0436\u0434\u0430\u0435\u0442, \u0447\u0442\u043e \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u0431\u044b\u043b\u0438 \u043e\u0431\u043d\u0430\u0440\u043e\u0434\u043e\u0432\u0430\u043d\u044b, \u043d\u043e \u043e\u0442\u043c\u0435\u0447\u0430\u0435\u0442, \u043e\u0434\u043d\u0430\u043a\u043e \u0435\u0439 \u043d\u0435\u0438\u0437\u0432\u0435\u0441\u0442\u043d\u043e \u043e \u0441\u043b\u0443\u0447\u0430\u044f\u0445 \u0438\u0445 \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438 \u0432 \u0440\u0435\u0430\u043b\u044c\u043d\u044b\u0445 \u0443\u0441\u043b\u043e\u0432\u0438\u044f\u0445.\n\n\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f \u0442\u0430\u043a\u0436\u0435 \u043e\u0431\u044a\u044f\u0432\u0438\u043b\u0430 \u043e \u0432\u044b\u043f\u0443\u0441\u043a\u0435 \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0439 \u0434\u043b\u044f \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u0438\u0445 \u043a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439 \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0432 IOS XR \u0438 \u043a\u043e\u043c\u043c\u0443\u0442\u0430\u0442\u043e\u0440\u0430\u0445 \u0441\u0435\u0440\u0438\u0438 Nexus 9000, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043c\u043e\u0433\u043b\u0438 \u043f\u0440\u0438\u0432\u0435\u0441\u0442\u0438 \u043a \u0443\u0434\u0430\u043b\u0435\u043d\u043d\u043e\u043c\u0443 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044e \u043a\u043e\u0434\u0430, \u043e\u0431\u0445\u043e\u0434\u0443 \u0430\u0443\u0442\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438, \u0432\u043d\u0435\u0434\u0440\u0435\u043d\u0438\u044e \u043a\u043e\u0434\u0430 \u0438 \u0434\u0440\u0443\u0433\u0438\u043c \u0442\u0438\u043f\u0430\u043c \u0430\u0442\u0430\u043a.\n\n\u0418\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0434\u043b\u044f IOS XR \u0437\u0430\u043a\u0440\u044b\u0432\u0430\u044e\u0442 \u043c\u043d\u043e\u0436\u0435\u0441\u0442\u0432\u043e \u043e\u0448\u0438\u0431\u043e\u043a, \u0441\u0433\u0440\u0443\u043f\u043f\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0445 \u043f\u043e \u043a\u043b\u0430\u0441\u0441\u0430\u043c \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439 \u0432 \u0440\u0430\u043c\u043a\u0430\u0445 \u0441\u0435\u043c\u0438 CVE, \u0432\u043a\u043b\u044e\u0447\u0430\u044f \u0434\u0432\u0435 \u0441 \u043e\u0446\u0435\u043d\u043a\u043e\u0439 CVSS 9,8: CVE-2026-20274 \u0438 CVE-2026-20279.\n\n\u041a \u043d\u0438\u043c \u043e\u0442\u043d\u043e\u0441\u044f\u0442\u0441\u044f \u043e\u0448\u0438\u0431\u043a\u0438, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u0435 \u0441 \u043f\u043e\u0432\u0440\u0435\u0436\u0434\u0435\u043d\u0438\u0435\u043c \u043f\u0430\u043c\u044f\u0442\u0438 \u0438 \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u044c\u044e \u043f\u0430\u043c\u044f\u0442\u0438, \u0430 \u0442\u0430\u043a\u0436\u0435 \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u044b \u0441 \u043d\u0435\u043a\u043e\u0440\u0440\u0435\u043a\u0442\u043d\u044b\u043c \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u0435\u043c \u0434\u043e\u0441\u0442\u0443\u043f\u0430, \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0435\u043d\u043d\u043e.\n\n\u0412 \u043a\u043e\u043c\u043c\u0443\u0442\u0430\u0442\u043e\u0440\u0430\u0445 \u0441\u0435\u0440\u0438\u0438 Nexus 9000 \u0431\u044b\u043b\u0430 \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0430 CVE-2026-20212 (\u043e\u0446\u0435\u043d\u043a\u0430 CVSS 9,8), \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u043b\u0430 \u0443\u0434\u0430\u043b\u0435\u043d\u043d\u044b\u043c \u0437\u043b\u043e\u0443\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u0438\u043a\u0430\u043c \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0430\u0442\u044c\u0441\u044f \u043a \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u044b\u043c \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e TCP-\u043f\u043e\u0440\u0442\u0430\u043c \u0438 \u0432\u044b\u043f\u043e\u043b\u043d\u044f\u0442\u044c \u043a\u043e\u0434 \u0441 \u043f\u0440\u0430\u0432\u0430\u043c\u0438 root.\n\n\u041a\u0440\u043e\u043c\u0435 \u0442\u043e\u0433\u043e, Cisco \u0443\u0441\u0442\u0440\u0430\u043d\u0438\u043b\u0430 \u0441\u0435\u0440\u044c\u0435\u0437\u043d\u0443\u044e \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0432 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430\u0445 \u0441\u0435\u0440\u0438\u0439 Desk Phone 9800, IP Phone 7800 \u0438 8800, \u0430 \u0442\u0430\u043a\u0436\u0435 Video Phone 8875, \u0440\u0430\u0431\u043e\u0442\u0430\u044e\u0449\u0438\u0445 \u043f\u043e \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0443 SIP.\n\n\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c, \u043e\u0442\u0441\u043b\u0435\u0436\u0438\u0432\u0430\u0435\u043c\u0430\u044f \u043a\u0430\u043a CVE-2026-20281, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0443\u0434\u0430\u043b\u0435\u043d\u043d\u044b\u043c \u043d\u0435\u0430\u0443\u0442\u0435\u043d\u0442\u0438\u0444\u0438\u0446\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u043c \u0437\u043b\u043e\u0443\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u0438\u043a\u0430\u043c \u043e\u0442\u043f\u0440\u0430\u0432\u043b\u044f\u0442\u044c \u043d\u0435\u043f\u0440\u0435\u0440\u044b\u0432\u043d\u044b\u0435 \u043f\u043e\u0442\u043e\u043a\u0438 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u0441\u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0445 HTTP-\u043f\u0430\u043a\u0435\u0442\u043e\u0432 \u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u044b\u0435 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430 \u0438 \u0432\u044b\u0437\u044b\u0432\u0430\u0442\u044c DoS.\n\nCisco \u0437\u0430\u0432\u0435\u0440\u044f\u0435\u0442, \u0447\u0442\u043e \u0435\u0439 \u043d\u0435\u0438\u0437\u0432\u0435\u0441\u0442\u043d\u043e \u043e \u0441\u043b\u0443\u0447\u0430\u044f\u0445 \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438 \u043a\u0430\u043a\u0438\u0445-\u043b\u0438\u0431\u043e \u0438\u0437 \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u043d\u044b\u0445 \u043f\u0440\u043e\u0431\u043b\u0435\u043c \u0432 \u0440\u0435\u0430\u043b\u044c\u043d\u044b\u0445 \u0443\u0441\u043b\u043e\u0432\u0438\u044f\u0445. \u041d\u043e \u043f\u043e\u0441\u043c\u043e\u0442\u0440\u0438\u043c.", "url": "https://t.me/true_secator/8577"}, {"timestamp": "2026-09-05T04:37:45.673Z", "date_only": false, "value": "2026-09-05T04:37:45.673265Z", "kind": "sighting", "label": "Seen", "source": "https://bsky.app/profile/cvemon.bsky.social/post/3muqnt5vbfw2f", "record": "CVE-2026-20355", "field": "creation_timestamp", "uuid": "b8a5b06c-e093-4a54-b8f1-ad4fd2468362", "content": "CVE-2026-20355 is trending. Hype score 8, currently #6 on cvemon.\n\nMultiple vulnerabilities in the Secure/Multipurpose Internet Mail Extensions (S/MIME) decryption functionality of Cisco Secure Email could allow an unauthenticated, remote attacker to\u2026\n\nhttps://cvemon.intruder.io/cves/CVE-2026-20355", "url": "https://bsky.app/profile/cvemon.bsky.social/post/3muqnt5vbfw2f"}, {"timestamp": "2026-09-07T23:38:07.345Z", "date_only": false, "value": "2026-09-07T23:38:07.345675Z", "kind": "sighting", "label": "Seen", "source": "https://bsky.app/profile/securitylab-jp.bsky.social/post/3muxoi34ya227", "record": "CVE-2026-20355", "field": "creation_timestamp", "uuid": "7e8249ad-3649-4e34-ae8a-894b64e1489a", "content": "Cisco Secure Email\u306bS/MIME\u306e\u8106\u5f31\u6027(CVE-2026-20354,CVE-2026-20355)\u3001\u6697\u53f7\u5316\u30e1\u30fc\u30eb\u306e\u5e73\u6587\u53d6\u5f97\u306b\u3064\u306a\u304c\u308b\u53ef\u80fd\u6027\u3000IP\u96fb\u8a71\u306eDoS\u3082\u516c\u8868 \n rocket-boys.co.jp/security-mea... \n\n#\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56Lab #security #securitynews #\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3 #\u8106\u5f31\u6027", "url": "https://bsky.app/profile/securitylab-jp.bsky.social/post/3muxoi34ya227"}, {"timestamp": "2026-09-08T11:22:17Z", "date_only": false, "value": "2026-09-08T11:22:17+00:00", "kind": "other", "label": "Advisory revision", "source": "csaf_cisco \u00b7 CISCO-SA-ESA-SMIME-DISC-DZW4REDY", "record": "CISCO-SA-ESA-SMIME-DISC-DZW4REDY", "field": "document.tracking.revision_history.1.date"}, {"timestamp": "2026-09-08T11:22:17Z", "date_only": false, "value": "2026-09-08T11:22:17+00:00", "kind": "other", "label": "Updated", "source": "csaf_cisco \u00b7 CISCO-SA-ESA-SMIME-DISC-DZW4REDY", "record": "CISCO-SA-ESA-SMIME-DISC-DZW4REDY", "field": "document.tracking.current_release_date"}, {"timestamp": "2026-09-08T11:22:21Z", "date_only": false, "value": "2026-09-08T11:22:21+00:00", "kind": "other", "label": "Document generated", "source": "csaf_cisco \u00b7 CISCO-SA-ESA-SMIME-DISC-DZW4REDY", "record": "CISCO-SA-ESA-SMIME-DISC-DZW4REDY", "field": "document.tracking.generator.date"}, {"timestamp": "2026-09-08T16:04:40.505Z", "date_only": false, "value": "2026-09-08T16:04:40.505Z", "kind": "other", "label": "Updated", "source": "cvelistv5", "record": "CVE-2026-20355", "field": "cveMetadata.dateUpdated"}, {"timestamp": "2026-09-08T16:04:40.505Z", "date_only": false, "value": "2026-09-08T16:04:40.505Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / cisco", "record": "CVE-2026-20355", "field": "containers.cna.providerMetadata.dateUpdated"}, {"timestamp": "2026-09-08T16:42:46.560Z", "date_only": false, "value": "2026-09-08T16:42:46.560627Z", "kind": "sighting", "label": "Seen", "source": "https://infosec.exchange/users/AAKL/statuses/117236417536820043", "record": "CVE-2026-20355", "field": "creation_timestamp", "uuid": "af3211c8-aaca-4f10-952e-69739ae2fb5f", "content": "New advisories from Cisco addressing two high and medium-severity vulnerabilities.\nNew: CVE-2026-20293: Cisco UCS and UCS-Based Appliances UEFI Shell Secure Boot Bypass Vulnerability https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucs-uefi-sb-bypass-eb6xC5GW\nKnown: CVE-2026-20354 and CVE-2026-20355: Cisco Secure Email Secure/Multipurpose Internet Mail Extensions Ciphertext Decryption Vulnerabilities @TalosSecurity #infosec #vulnerability #Cisco", "url": "https://infosec.exchange/users/AAKL/statuses/117236417536820043"}], "metrics": {"as_of": "2026-10-29T01:35:09.660Z", "anchors": {"origin": {"timestamp": "2026-09-02T16:00:00Z", "date_only": false, "value": "2026-09-02T16:00:00+00:00", "kind": "milestone", "label": "Published", "source": "csaf_cisco \u00b7 CISCO-SA-ESA-SMIME-DISC-DZW4REDY", "record": "CISCO-SA-ESA-SMIME-DISC-DZW4REDY", "field": "document.tracking.initial_release_date", "metric_role": "disclosure", "metric_basis": "recorded_event"}, "discovery": null, "report": null, "acknowledgement": null, "disclosure": {"timestamp": "2026-09-02T16:00:00Z", "date_only": false, "value": "2026-09-02T16:00:00+00:00", "kind": "milestone", "label": "Published", "source": "csaf_cisco \u00b7 CISCO-SA-ESA-SMIME-DISC-DZW4REDY", "record": "CISCO-SA-ESA-SMIME-DISC-DZW4REDY", "field": "document.tracking.initial_release_date", "metric_role": "disclosure", "metric_basis": "recorded_event"}, "exploit_publication": null, "exploitation": null, "patch": null}, "vendor_response_time": {"available": false, "missing": ["start", "end"]}, "time_to_exploit": {"available": false, "missing": ["end"]}, "disclosure_to_exploit": {"available": false, "missing": ["end"]}, "disclosure_to_exploit_publication": {"available": false, "missing": ["end"]}, "time_to_patch": {"available": false, "missing": ["start", "end"]}, "total_time_to_patch": {"available": false, "missing": ["start", "end"]}, "disclosure_to_patch": {"available": false, "missing": ["end"]}, "time_unpatched": {"available": true, "seconds": 4872909.660724, "hours": 1353.5860168677777, "days": 56.39941736949074, "min_seconds": 4872909.660724, "max_seconds": 4872909.660724, "approximate": false, "ongoing": true, "order_known": true, "batch_listing": false, "end_before_start": false, "start": {"timestamp": "2026-09-02T16:00:00Z", "date_only": false, "value": "2026-09-02T16:00:00+00:00", "kind": "milestone", "label": "Published", "source": "csaf_cisco \u00b7 CISCO-SA-ESA-SMIME-DISC-DZW4REDY", "record": "CISCO-SA-ESA-SMIME-DISC-DZW4REDY", "field": "document.tracking.initial_release_date", "metric_role": "disclosure", "metric_basis": "recorded_event"}, "end": {"timestamp": "2026-10-29T01:35:09.660Z", "date_only": false, "label": "As of", "source": "Calculation clock"}}, "exploitation_to_patch": {"available": false, "missing": ["start"]}, "exploit_publication_to_patch": {"available": false, "missing": ["start"]}}}