CVE-2026-20354
mediumPriorität · verfolgen · 24EPSS 0.002 · 10. PerzentilNLUSEPSS · bewertet 2026-10-27
Multiple vulnerabilities in the Secure/Multipurpose Internet Mail Extensions (S/MIME) decryption functionality of Cisco Secure Email could allow an unauthenticated, remote attacker to recover plain text from encrypted email messages. These vulnerabilities are due to insufficient validation of message integrity. An attacker could exploit these vulnerabilities by using a machine-in-the-middle technique to intercept and modify traffic between email gateways. A successful exploit could allow the attacker to obtain plaintext content from the encrypted communication.
Behebungen
Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.
Ein Hersteller-Fix ist verfügbar.
- Behoben13.0.0-392cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben13.0.5-007cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben13.5.1-277cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben13.5.4-038cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben14.0.0-698cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben14.2.0-620cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben14.2.1-020cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben14.3.0-032cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben15.0.0-104cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben15.0.1-030cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben15.0.3-002cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben15.0.5-016cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben15.5.0-048cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben15.5.1-055cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben15.5.2-018cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben15.5.3-022cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben15.5.4-012cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben16.0.0-050cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben16.0.0-054cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben16.0.1-017cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben16.0.2-112cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben16.0.3-044cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben16.0.4-016cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben16.5.0-780cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
cvss
Technischer Schweregrad, 0–10. Eine Zeile je Quelle.
Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen
schwächen
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betroffene Produkte (32)
Betroffene Produkte und Versionsbereiche.
Advisories (2)
Hersteller- und Ökosystem-Meldungen dazu.
- NCSC-2026-0338Kwetsbaarheden verholpen in Cisco Nexus 9000 Series, IOS XR Software en Secure EmailNL2026-09-03csaf · ncsc_nlNL
Cisco heeft kwetsbaarheden verholpen in Cisco Nexus 9000 Series Switches met Silicon One technologie, Cisco IOS XR Software en Cisco Secure Email.
- cisco-sa-esa-smime-disc-dzw4rEdYCisco Secure Email Secure/Multipurpose Internet Mail Extensions Ciphertext Decryption Vulnerabilities2026-09-02csaf · cisco_csafUS
Multiple vulnerabilities in the Secure/Multipurpose Internet Mail Extensions (S/MIME) decryption functionality of Cisco Secure Email could allow an unauthenticated, remote attacker to recover plain text from encrypted email messages. These vulnerabilities are due to insufficient validation of message integrity. An attacker could exploit these vulnerabilities by using a machine-in-the-middle technique to intercept and modify traffic between email gateways. A successful exploit could allow the attacker to obtain plaintext content from the encrypted communication. There are no workarounds that address these vulnerabilities.
quellen
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Referenzen (1) nvd
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