ASR 9903 vulnerabilitiesAnd the versions its exploited flaws hit.
ASR 9903 is made by Cisco. We track 27 published vulnerabilities in it, across 0 versions. 4 of them are on the list of flaws known to be exploited, the newest added on 3 March 2022. If you run ASR 9903, check your version against the exploited flaws below and patch those first.
The most recent ASR 9903 flaw added to the known-exploited list is CVE-2017-12231, on 3 March 2022. We keep watching the known-exploited list.
Which versions of ASR 9903 do the exploited flaws hit?
Each exploited flaw lists the versions it affects, as published by the vendor. Find your version, then patch.
Which ASR 9903 vulnerabilities are being exploited?
4 flaws are on the government list of vulnerabilities known to be exploited. These are the ones criminals are using now, so they go first, whatever their severity score says.
- 7.5Cisco IOS Software Network Address Translation Denial-of-Service Vulnerability
A vulnerability in the implementation of Network Address Translation (NAT) functionality in Cisco IOS could allow an unauthenticated, remote attacker to cause a denial of service.
- 9.8Cisco IOS and IOS XE Software DHCP Remote Code Execution Vulnerability
The Dynamic Host Configuration Protocol (DHCP) relay subsystem of Cisco IOS and Cisco IOS XE Software contains a vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary code and gain...
- 8.8Cisco IOS XR Software Discovery Protocol Format String Vulnerability
Cisco IOS XR improperly validates string input from certain fields in Cisco Discovery Protocol messages.
- 8.6Cisco IOS XR Software DVMRP Memory Exhaustion Vulnerability
Cisco IOS XR Distance Vector Multicast Routing Protocol (DVMRP) incorrectly handles Internet Group Management Protocol (IGMP) packets.
Which ASR 9903 flaws are most likely to be used?
Ranked by the latest exploit-likelihood forecast: the chance each flaw is used in an attack in the next 30 days. A high severity score on its own doesn't tell you that. Flaws shared by many other makers' products are left out.
- 14%
The DHCP relay subsystem of Cisco IOS 12.2 through 15.6 and Cisco IOS XE Software contains a vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary code and gain full control of an...
- 12%
A vulnerability in the Cisco Discovery Protocol implementation for Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to execute arbitrary code or cause a reload on an affected device.
- 7.1%
A vulnerability in the implementation of Network Address Translation (NAT) functionality in Cisco IOS 12.4 through 15.6 could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on...
- 3.3%
Multiple vulnerabilities in the Distance Vector Multicast Routing Protocol (DVMRP) feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to either immediately crash the Internet Group...
- 1.9%CVE-2020-26070High
A vulnerability in the ingress packet processing function of Cisco IOS XR Software for Cisco ASR 9000 Series Aggregation Services Routers could allow an unauthenticated, remote attacker to cause a denial of service...
- 1.7%CVE-2023-20066Medium
A vulnerability in the web UI of Cisco IOS XE Software could allow an authenticated, remote attacker to perform a directory traversal and access resources that are outside the filesystem mountpoint of the web UI.
- 1.6%CVE-2021-34718High
A vulnerability in the SSH Server process of Cisco IOS XR Software could allow an authenticated, remote attacker to overwrite and read arbitrary files on the local device.
- 1.5%CVE-2019-16027Medium
A vulnerability in the implementation of the Intermediate System–to–Intermediate System (IS–IS) routing protocol functionality in Cisco IOS XR Software could allow an authenticated, remote attacker...
- 1.5%CVE-2022-20714High
A vulnerability in the data plane microcode of Lightspeed-Plus line cards for Cisco ASR 9000 Series Aggregation Services Routers could allow an unauthenticated, remote attacker to cause the line card to reset.
- 1.3%CVE-2021-34737High
A vulnerability in the DHCP version 4 (DHCPv4) server feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to trigger a crash of the dhcpd process, resulting in a denial of service (DoS)...
Running ASR 9903? We'll keep checking.
Looking flaws up one at a time doesn't scale. Tell us what you run once, and we tell you which flaws matter to you, in what order, and keep watching for new ones.
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1 flaw being exploited affects software Acme tracks
A vulnerability in the implementation of Network Address Translation (NAT) functionality in Cisco IOS could allow an unauthenticated, remote attacker to cause a denial of service.
- Matched to
- ASR 9903 on Acme's software list
- What to do
- Patch first, then check for signs of use
Sent to the alert recipients Acme chose. Also in the app and to Acme's webhook.
We track 27 published vulnerabilities listed under the name ASR 9903, across 0 versions. The most recent ASR 9903 flaw added to the known-exploited list is CVE-2017-12231, on 3 March 2022.
4 are on the list of flaws known to be exploited. The most recently added are CVE-2017-12231, CVE-2017-12240 and CVE-2020-3118.
Create a Precursor Intelligence account and track ASR 9903. We match it against every published flaw, give each one a risk score from 0 to 100 and keep watching, so you hear about new ones as soon as we know, by email, in the app or by webhook.