| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 7.2 | $5k-$25k | 0.00 |
Summary
A vulnerability identified as critical has been detected in Mozilla Firefox and Thunderbird. Impacted is an unknown function of the component Reference Handler. The manipulation leads to use after free. This vulnerability is uniquely identified as CVE-2020-26959. The attack is possible to be carried out remotely. No exploit exists. You should upgrade the affected component.
Details
A vulnerability was found in Mozilla Firefox and Thunderbird (Web Browser) (affected version not known). It has been rated as critical. This issue affects some unknown functionality of the component Reference Handler. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability.
The weakness was disclosed 12/09/2020 as mfsa2020-50. The advisory is shared at mozilla.org. The identification of this vulnerability is CVE-2020-26959. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 12/14/2020).
Upgrading eliminates this vulnerability. The upgrade is hosted for download at mozilla.org.
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Product
Type
Vendor
Name
License
Website
- Vendor: https://www.mozilla.org/
- Product: https://www.mozilla.org/en-US/firefox/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.6VulDB Meta Temp Score: 7.4
VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 8.8
NVD Vector: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Use after freeCWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: mozilla.org
Timeline
10/12/2020 🔍12/09/2020 🔍
12/09/2020 🔍
12/14/2020 🔍
Sources
Vendor: mozilla.orgProduct: mozilla.org
Advisory: mfsa2020-50
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2020-26959 (🔍)
GCVE (CVE): GCVE-0-2020-26959
GCVE (VulDB): GCVE-100-165797
Entry
Created: 12/09/2020 10:57Updated: 12/14/2020 08:54
Changes: 12/09/2020 10:57 (41), 12/14/2020 08:48 (5), 12/14/2020 08:54 (18)
Complete: 🔍
Cache ID: 216::103
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
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