CVE-2020-3190

mediumPriorität · verfolgen · 23EPSS 0.013 · 71. PerzentilEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.32% (71st) EPSS

CVSS 5 · medium

Is it mine?

10 products

Prüfe deine Angriffsfläche

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cisco_csaf

EPSS · bewertet 2026-10-27

A vulnerability in the IPsec packet processor of Cisco IOS XR Software could allow an unauthenticated remote attacker to cause a denial of service (DoS) condition for IPsec sessions to an affected device. The vulnerability is due to improper handling of packets by the IPsec packet processor. An attacker could exploit this vulnerability by sending malicious ICMP error messages to an affected device that get punted to the IPsec packet processor. A successful exploit could allow the attacker to deplete IPsec memory, resulting in all future IPsec packets to an affected device being dropped by the device. Manual intervention is required to recover from this situation.

Behebungen

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

Ein Hersteller-Fix ist verfügbar.

BehobenCisco IOS XR Softwarecisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
WorkaroundCisco IOS XR Softwarecisco_csaf
To prevent exploitability of this vulnerability, administrators can apply access-control lists (ACLs) that deny ICMP unreachable packets to an affected device. Customers that do not use any IPsec features can also disable the IPsec processes as shown in the following example: RP/0/RP0/CPU0:ios#process shutdown ipsec_mp Fri Feb 21 14:56:03.870 UTC Process Shutdown of a process could leave the System in an Inconsistent State. Proceed? [confirm] RP/0/RP0/CPU0:ios#process shutdown ipsec_pp Fri Feb 21 14:56:09.124 UTC Process Shutdown of a process could leave the System in an Inconsistent State. Proceed? [confirm] RP/0/RP0/CPU0:ios# Note: Shutting down the IPsec processes is not persistent across reloads and would need to be re-applied after every system reload.

cvss

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

5.8

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USAusnutzbarkeit 10 · Auswirkung 2.9

v3.15.8mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Lprimary · NVD / NIST USAusnutzbarkeit 3.9 · Auswirkung 1.4

v3.05.8mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Lsecondary · ENISA EU

v3.05.8mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Lsecondary · psirt@cisco.com USAusnutzbarkeit 3.9 · Auswirkung 1.4

v3.05.8mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Lsecondary · Cisco PSIRT US

v3.15.8mediumAV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Lsecondary · FSTEC (BDU) RU

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L/E:Usecondary · CVSS-BT (t0sche)

SSVC

Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-400USprimärCWE-400US

betroffene Produkte (10)

Betroffene Produkte und Versionsbereiche.

Cisco Cisco IOS XR Softwarealle Versionencisco_csafUS
Cisco Cisco IOS XR Softwareunspecified → n/aenisa_euvdEU
Cisco Systems Inc. Cisco IOS XR≤ 6.4.3fstec_bduRU
Cisco Systems Inc. Cisco IOS XR6.6.0 → 6.6.3fstec_bduRU
Cisco Systems Inc. Cisco IOS XR7.0.0 → 7.0.2fstec_bduRU
Cisco Systems Inc. Cisco IOS XR7.1.0 → 7.1.1fstec_bduRU
cisco ios xr< 6.4.3nvdUScpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*
cisco ios xr6.6.0 → 6.6.3nvdUScpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*
cisco ios xr7.0.0 → 7.0.2nvdUScpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*
cisco ios xr7.1.0 → 7.1.1nvdUScpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*

Advisories (1)

Hersteller- und Ökosystem-Meldungen dazu.

cisco-sa-iosxr-ipsec-dos-q8UPX6mCisco IOS XR Software IPsec Packet Processor Denial of Service Vulnerability2020-03-04csaf · cisco_csafUS
A vulnerability in the IPsec packet processor of Cisco IOS XR Software could allow an unauthenticated remote attacker to cause a denial of service (DoS) condition for IPsec sessions to an affected device. The vulnerability is due to improper handling of packets by the IPsec packet processor. An attacker could exploit this vulnerability by sending malicious ICMP error messages to an affected device that get punted to the IPsec packet processor. A successful exploit could allow the attacker to deplete IPsec memory, resulting in all future IPsec packets to an affected device being dropped by the device. Manual intervention is required to recover from this situation. Cisco has released software updates that address the vulnerability described in this advisory. There are workarounds that address this vulnerability. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-ipsec-dos-q8UPX6m ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-ipsec-dos-q8UPX6m"]

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 NVD CVE.org MITRE

veröffentlicht 2020-03-04geändert 2026-06-17

verwandt (9,611)

Verwandte Einträge.

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The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through…
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Apache Log4j2 2.0-beta9 through 2.15.0 (excluding security releases 2.12.2, 2.12.3, and 2.3.1) JNDI features used in configuration, log messages, and parameters do not protect agai…

+9606 weitere

Referenzen (6)

Externe Belege — Patches, Meldungen, Analysen.

scry

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