Firecracker
Vendor:
First CVE: Dec 11, 2019 · Active for 6 years
5
Total CVEs
More Total CVEs than 77% of tracked products
1.7
Avg CVEs / Year
Higher CVE frequency than 59% of tracked products
7.3
Avg CVSS
Higher Avg CVSS than 48% of tracked products
0.0%
KEV Rate
Bottom 1%
Trends Over Time
The number and severity of CVEs published that impact Firecracker over time
Volume of CVEsAvg CVSS Base Score
First CVE
Dec 11, 2019
6 years ago
Most Recent CVE
Apr 8, 2026
107 days ago
CVE Severity & Scoring
Firecracker5 CVEs
40%
40%
20%
All CVEs352,294 CVEs
45%
40%
11%
MediumHighCritical
Attack Vector
Local2 (40.0%)
Network3 (60.0%)
Unknown0 (0.0%)
Physical0 (0.0%)
Adjacent Network0 (0.0%)
Attack Complexity
Low3 (60.0%)
High2 (40.0%)
Unknown0 (0.0%)
User Interaction
None5 (100.0%)
Unknown0 (0.0%)
Required0 (0.0%)
Privileges Required
Low0 (0.0%)
High2 (40.0%)
None3 (60.0%)
Unknown0 (0.0%)
Top CVEs
Signals from CVEs in this product scope (5 CVEs).
5 CVEs · Highest risk first
| CVE | Published | CVSS | Risk | KEV | Exploit |
|---|---|---|---|---|---|
CVE-2019-18960CRITICAL Firecracker vsock implementation buffer overflow in versions 0.18.0 and 0.19.0. This can result in potentially exploitable crashes. | Dec 11, 2019 | 9.8 | 32 | NO | NO |
CVE-2026-5747HIGH An out-of-bounds write issue in the virtio PCI transport in Firecracker 1.13.0 through 1.14.3 and 1.15.0 on x86_64 and aarch64 might allow a local guest user with root privileges t | Apr 8, 2026 | 7.5 | 28 | NO | NO |
CVE-2020-27174HIGH In Amazon AWS Firecracker before 0.21.3, and 0.22.x before 0.22.1, the serial console buffer can grow its memory usage without limit when data is sent to the standard input. This c | Oct 16, 2020 | 7.5 | 24 | NO | NO |
CVE-2026-1386MEDIUM A UNIX symbolic link following issue in the jailer component in Firecracker version v1.13.1 and earlier and 1.14.0 on Linux may allow a local host user with write access to the pr | Jan 23, 2026 | 6.0 | 22 | NO | NO |
CVE-2020-16843MEDIUM In Firecracker 0.20.x before 0.20.1 and 0.21.x before 0.21.2, the network stack can freeze under heavy ingress traffic. This can result in a denial of service on the microVM when i | Aug 4, 2020 | 5.9 | 21 | NO | NO |
Exploit Exposure
Signals from CVEs in this product scope (5 CVEs).
CISA KEV
0 CVEs
0.0% of CVEs· Bottom 1%
Metasploit
0 CVEs
0.0% of CVEs· Bottom 1%
Nuclei
0 CVEs
0.0% of CVEs· Bottom 1%
ExploitDB
0 CVEs
0.0% of CVEs· Bottom 1%
Social Chatter
Signals from CVEs in this product scope (5 CVEs).
Media Mentions
Signals from CVEs in this product scope (5 CVEs).
Top CNAs Publishing CVEs For Firecracker
Top CWEs
Versions
| Version | CVE Count | Avg CVSS | Avg EPSS | KEV | Exploits |
|---|---|---|---|---|---|
| 1.15.0 | 1 | 7.5 | 0.2% | 0 | 0 |
| 1.14.0 | 1 | 6.0 | 0.2% | 0 | 0 |
| 0.21.1 | 1 | 5.9 | 1.7% | 0 | 0 |
| 0.21.0 | 1 | 5.9 | 1.7% | 0 | 0 |
| 0.20.0 | 1 | 5.9 | 1.7% | 0 | 0 |
| 0.19.0 | 1 | 9.8 | 3.3% | 0 | 0 |
| 0.18.0 | 1 | 9.8 | 3.3% | 0 | 0 |