KEV · Actively exploited
CVE-2020-6819
HIGH 8.1
KEV
Under certain conditions, when running the nsDocShell destructor, a race condition can cause a use-after-free. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Thunderbird < 68.7.0, Firefox < 74.0.1, and Firefox ESR < 68.6.1.
Attack vector : Network
No privileges required
No user interaction
Show raw CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
0.36%
above median
percentile 58.7%
CISA Known Exploited Vulnerability
- Added to KEV
- 2021-11-03
- Remediation deadline
- 2022-05-03
- Required action
- Apply updates per vendor instructions.
- Ransomware
- No
Tracked apps referencing this CVE
For each app: the affected range, the fixing version, and where the tracked app stands today.
Vulnerable CPE configurations (1)
| Vendor | Product | Platform | Versions | CPE 2.3 URI |
|---|---|---|---|---|
| mozilla |
thunderbird All platforms (wildcard)
|
All platforms (wildcard) | <68.7.0 | cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* |