CVE-2022-20960

highPriorität · verfolgen · 30EPSS 0.008 · 58. PerzentilEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.85% (58th) EPSS

CVSS 7.5 · high

Is it mine?

22 products

Prüfe deine Angriffsfläche

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cisco_csaf

EPSS · bewertet 2026-10-27

A vulnerability in Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper handling of certain TLS connections that are processed by an affected device. An attacker could exploit this vulnerability by establishing a large number of concurrent TLS connections to an affected device. A successful exploit could allow the attacker to cause the device to drop new TLS email messages that come from the associated email servers. Exploitation of this vulnerability does not cause the affected device to unexpectedly reload. The device will recover autonomously within a few hours of when the attack is halted or mitigated.

Behebungen

Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.

Ein Hersteller-Fix ist verfügbar.

BehobenCisco Secure Emailcisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

7.5

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · medium–high · 6.9–7.5

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USAusnutzbarkeit 3.9 · Auswirkung 3.6

v3.17.5highAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · psirt@cisco.com USAusnutzbarkeit 3.9 · Auswirkung 3.6

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · Cisco PSIRT US

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-295USprimärCWE-295USCWE-400USCWE-400US

betroffene Produkte (22)

Betroffene Produkte und Versionsbereiche.

Cisco Cisco Secure Emailalle Versionencisco_csafUS
Cisco Cisco Secure Email≤ 11.1.0-131enisa_euvdEU
Cisco Cisco Secure Email≤ 11.1.0-128enisa_euvdEU
Cisco Cisco Secure Email≤ 12.1.0-071enisa_euvdEU
Cisco Cisco Secure Email≤ 12.0.0-419enisa_euvdEU
Cisco Cisco Secure Email≤ 13.0.0-392enisa_euvdEU
Cisco Cisco Secure Email≤ 12.5.0-066enisa_euvdEU
Cisco Cisco Secure Email≤ 12.1.0-087enisa_euvdEU
Cisco Cisco Secure Email≤ 11.0.3-238enisa_euvdEU
Cisco Cisco Secure Email≤ 14.0.0-698enisa_euvdEU
Cisco Cisco Secure Email≤ 14.2.0-620enisa_euvdEU
Cisco Cisco Secure Email≤ 12.1.0-089enisa_euvdEU
Cisco Cisco Secure Email≤ 13.5.1-277enisa_euvdEU
Cisco Cisco Secure Email≤ 11.1.0-069enisa_euvdEU
Cisco Systems Inc. AsyncOS≤ 14.0fstec_bduRU
Cisco Systems Inc. AsyncOS≤ 13.5fstec_bduRU
Cisco Systems Inc. AsyncOS≤ 13.0fstec_bduRU
Cisco Systems Inc. AsyncOS≤ 12.5.0fstec_bduRU
Cisco Systems Inc. AsyncOS14.2 → 14.2.1-015fstec_bduRU
Cisco Systems Inc. AsyncOS14.3 → 14.3.0-020fstec_bduRU

20 von 22 angezeigt

Advisories (1)

Hersteller- und Ökosystem-Meldungen dazu.

cisco-sa-esa-dos-gdghHmbVCisco Email Security Appliance Denial of Service Vulnerability2022-11-02csaf · cisco_csafUS
A vulnerability in Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper handling of certain TLS connections that are processed by an affected device. An attacker could exploit this vulnerability by establishing a large number of concurrent TLS connections to an affected device. A successful exploit could allow the attacker to cause the device to drop new TLS email messages that come from the associated email servers. Exploitation of this vulnerability does not cause the affected device to unexpectedly reload. The device will recover autonomously within a few hours of when the attack is halted or mitigated. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

auch bekannt als (4)

Weitere Namen und Kennungen dieser Entität.

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvd enisa_euvd fstec_bdu cisco_csaf NVD CVE.org MITRE

veröffentlicht 2022-11-04geändert 2026-06-17

verwandt (1,894)

Verwandte Einträge.

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In WorkSource, there is a possible parcel mismatch. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed…
CVE-2022-26923US	high9.0OT kritisch	83.5% (100th)	KEV	2022-05-10
Active Directory Domain Services Elevation of Privilege Vulnerability
CVE-2022-20703US	high8.0OT kritisch	9.20% (95th)	KEV	2022-02-10
Multiple vulnerabilities in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker to do any of the following: Execute arbitrary code Elevate pr…

+1889 weitere

Referenzen (6)

Externe Belege — Patches, Meldungen, Analysen.

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