CVE-2020-3254
No exploitation reported by the sources we read.
- Published2020-05-06
- Fixed in9.12.2.1 · 9.10.1.27 · 9.9.2.66 · 9.8.4.7 · 9.6.4.34
- WeaknessCWE-400
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
Multiple vulnerabilities in the Media Gateway Control Protocol (MGCP) inspection feature of Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerabilities are due to inefficient memory management. An attacker could exploit these vulnerabilities by sending crafted MGCP packets through an affected device. An exploit could allow the attacker to cause memory exhaustion resulting in a restart of an affected device, causing a DoS condition for traffic traversing the device.
Timeline
dates in UTC- 2020-05-0617:15CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 21:37 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2020-3254?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2020-3254?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 9.12 | ≥ 9.12, < 9.12.2.1 | 9.12.2.1 | NVD |
| 9.10 | ≥ 9.10, < 9.10.1.27 | 9.10.1.27 | NVD |
| 9.9 | ≥ 9.9, < 9.9.2.66 | 9.9.2.66 | NVD |
| 9.8 | ≥ 9.8, < 9.8.4.7 | 9.8.4.7 | NVD |
| 9.6 | ≥ 9.6, < 9.6.4.34 | 9.6.4.34 | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 6.4 | ≥ 6.4.0, < 6.4.0.4 | 6.4.0.4 | NVD |
| 6.3 | ≥ 6.3.0, < 6.3.0.6 | 6.3.0.6 | NVD |
| 6.2 | ≥ 6.2.3, < 6.2.3.16 | 6.2.3.16 | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 9.10 | = 9.10\(1.3\) | no fix published | NVD |
11 more products in the sources.
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Fix
- Update Cisco ASA to 9.12.2.1 · 9.10.1.27 · 9.9.2.66 · 9.8.4.7 · 9.6.4.34
Advisories and patches
- tools.cisco.comVendor Advisory
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Published
- 2020-05-06
- Last Modified
- 2026-08-11
- NVD status
- Modified
Frequently asked questions
What is CVE-2020-3254?
Is CVE-2020-3254 actively exploited?
What is the CVSS score for CVE-2020-3254?
Hear about the next vulnerability in your software
Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».
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Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.