CVE-2022-20918: A vulnerability in the Simple Network Management Protocol (SNMP) access controls for Cisco FirePOWER Software

This month

HIGH 7.5REMOTEMITIGATEUPGRADE

CVE-2022-20918 is a high-severity flaw (CVSS 7.5) affecting firepower services software for asa, secure firewall management center. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability in the Simple Network Management Protocol (SNMP) access controls for Cisco FirePOWER Software for Adaptive Security Appliance (ASA) FirePOWER module, Cisco Firepower Management Center (FMC) Software, and Cisco Next-Generation Intrusion Prevention System (NGIPS) Software could allow an unauthenticated, remote attacker to perform an SNMP GET request using a default credential. This vulnerability is due to the presence of a defaul

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.9% (top 39%)
CISA exploited list	No
Weakness	CWE-284, CWE-287
Published	2022-11-15
Last modified	2026-06-17

Publisher (CNA): Cisco Systems, Inc. · Vendor: cisco

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-11-15 21:15 UTCPublished CVE record published
2026-06-17 04:25 UTCUpdated Record last modified

cisco firepower services software for asa MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy firepower-services-software-for-asa || rpm -q firepower-services-software-for-asa || firepower-services-software-for-asa --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

cisco secure firewall management center UPGRADE

Affected: >= 7.0.0 and < 7.0.5

Fixed in: 7.0.5

Safe to downgrade to: a release before 7.0.0

1. Check installed version

apt-cache policy secure-firewall-management-center || rpm -q secure-firewall-management-center || secure-firewall-management-center --version

2. UPGRADE to 7.0.5 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade secure-firewall-management-center

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade secure-firewall-management-center

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 7.0.0 (Debian / Ubuntu)

apt-cache madison secure-firewall-management-center sudo apt install secure-firewall-management-center=<VERSION_BEFORE_7.0.0> sudo apt-mark hold secure-firewall-management-center

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list secure-firewall-management-center sudo dnf downgrade secure-firewall-management-center-<VERSION_BEFORE_7.0.0> sudo dnf versionlock add secure-firewall-management-center

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2022-20918?

firepower services software for asa: mitigate or apply the listed mitigation; secure firewall management center: upgrade to 7.0.5. Exact commands for each OS are on this page.

Is CVE-2022-20918 being exploited?

CVE-2022-20918 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2022-20918 affect?

CVE-2022-20918 affects firepower services software for asa, secure firewall management center. Severity is high (CVSS 7.5). A vulnerability in the Simple Network Management Protocol (SNMP) access controls for Cisco FirePOWER Software for Adaptive Security Appliance (ASA) FirePOWER module, Cisco Firepower Management Center (FMC) Software, and Cisco Next-Generatio

How urgent is CVE-2022-20918?

Priority 46/100. High severity; Remotely exploitable, no login, no user action

Software pages

Cisco ASA vulnerabilities · Cisco vulnerabilities

Related CVEs

CVE-2019-1978 MEDIUM 5.8 MITIGATE UPGRADE A vulnerability in the stream reassembly component of Cisco Firepower Threat Defense Software, Cisco FirePOWER
CVE-2019-1981 MEDIUM 5.8 MITIGATE UPGRADE A vulnerability in the normalization functionality of Cisco Firepower Threat Defense Software, Cisco FirePOWER
CVE-2019-1980 MEDIUM 5.3 MITIGATE UPGRADE A vulnerability in the protocol detection component of Cisco Firepower Threat Defense Software, Cisco FirePOWE
CVE-2019-1982 MEDIUM 5.3 MITIGATE DOWNGRADE A vulnerability in the HTTP traffic filtering component of Cisco Firepower Threat Defense Software, Cisco Fire
CVE-2022-20927 HIGH 7.7 MITIGATE UPGRADE A vulnerability in the SSL/TLS client of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower

References

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