https://vulnerability.circl.lu Contains only the most 10 recent sightings. http://www.rssboard.org/rss-specification python-feedgen en Thu, 03 Sep 2026 18:46:05 +0000 https://vulnerability.circl.lu/sighting/1e752872-2c93-4c7c-aa1c-26be8eaf6704/export {"uuid": "1e752872-2c93-4c7c-aa1c-26be8eaf6704", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-20355", "type": "seen", "source": "https://t.me/pphm_HackerNews/2985", "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.", "creation_timestamp": "2026-09-03T16:00:06.424190Z"} {"uuid": "1e752872-2c93-4c7c-aa1c-26be8eaf6704", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-20355", "type": "seen", "source": "https://t.me/pphm_HackerNews/2985", "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.", "creation_timestamp": "2026-09-03T16:00:06.424190Z"} https://vulnerability.circl.lu/sighting/1e752872-2c93-4c7c-aa1c-26be8eaf6704/export Thu, 03 Sep 2026 16:00:06 +0000 https://vulnerability.circl.lu/sighting/c0781b1c-06f8-45cb-8360-a136da561435/export {"uuid": "c0781b1c-06f8-45cb-8360-a136da561435", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-20355", "type": "seen", "source": "https://bsky.app/profile/infosecbriefly.bsky.social/post/3mumbetpumm2m", "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", "creation_timestamp": "2026-09-03T10:44:22.318657Z"} {"uuid": "c0781b1c-06f8-45cb-8360-a136da561435", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-20355", "type": "seen", "source": "https://bsky.app/profile/infosecbriefly.bsky.social/post/3mumbetpumm2m", "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", "creation_timestamp": "2026-09-03T10:44:22.318657Z"} https://vulnerability.circl.lu/sighting/c0781b1c-06f8-45cb-8360-a136da561435/export Thu, 03 Sep 2026 10:44:22 +0000 https://vulnerability.circl.lu/sighting/2ae72c78-d277-4378-9710-a93acb5c146b/export {"uuid": "2ae72c78-d277-4378-9710-a93acb5c146b", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "86ecb4e1-bb32-44d5-9f39-8a4673af8385", "vulnerability": "CVE-2026-20355", "type": "seen", "source": "https://www.kyberturvallisuuskeskus.fi/fi/haavoittuvuudet/haavoittuvuus-2026-24", "content": "", "creation_timestamp": "2026-09-03T08:46:09.958583Z"} {"uuid": "2ae72c78-d277-4378-9710-a93acb5c146b", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "86ecb4e1-bb32-44d5-9f39-8a4673af8385", "vulnerability": "CVE-2026-20355", "type": "seen", "source": "https://www.kyberturvallisuuskeskus.fi/fi/haavoittuvuudet/haavoittuvuus-2026-24", "content": "", "creation_timestamp": "2026-09-03T08:46:09.958583Z"} https://vulnerability.circl.lu/sighting/2ae72c78-d277-4378-9710-a93acb5c146b/export Thu, 03 Sep 2026 08:46:09 +0000 https://vulnerability.circl.lu/sighting/c71fe448-b4a1-49c8-9d82-d1a87eb201ab/export {"uuid": "c71fe448-b4a1-49c8-9d82-d1a87eb201ab", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "86ecb4e1-bb32-44d5-9f39-8a4673af8385", "vulnerability": "CVE-2026-20355", "type": "seen", "source": "https://www.govcert.gov.hk/en/alerts_detail.php?id=2046", "content": "", "creation_timestamp": "2026-09-03T08:45:03.573780Z"} {"uuid": "c71fe448-b4a1-49c8-9d82-d1a87eb201ab", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "86ecb4e1-bb32-44d5-9f39-8a4673af8385", "vulnerability": "CVE-2026-20355", "type": "seen", "source": "https://www.govcert.gov.hk/en/alerts_detail.php?id=2046", "content": "", "creation_timestamp": "2026-09-03T08:45:03.573780Z"} https://vulnerability.circl.lu/sighting/c71fe448-b4a1-49c8-9d82-d1a87eb201ab/export Thu, 03 Sep 2026 08:45:03 +0000