| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 7.9 | $0-$5k | 0.00 |
Summary
A vulnerability classified as critical was found in Mozilla Firefox up to 55. Affected is an unknown function. The manipulation results in memory corruption. This vulnerability is identified as CVE-2017-7810. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is advised.
Details
A vulnerability, which was classified as critical, was found in Mozilla Firefox up to 55 (Web Browser). Affected is an unknown function. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability.
The bug was discovered 09/28/2017. The weakness was released 09/28/2017 with Dell as MFSA 2017-21 as confirmed security advisory (Website). The advisory is shared for download at mozilla.org. This vulnerability is traded as CVE-2017-7810 since 04/12/2017. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.
The vulnerability scanner Nessus provides a plugin with the ID 108820 (GLSA-201803-14 : Mozilla Thunderbird: Multiple vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370584 (Mozilla Firefox Multiple Vulnerabilities. (mfsa2017-21,mfsa2017-22)).
Upgrading to version 56 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.
The vulnerability is also documented in the databases at Tenable (108820), SecurityFocus (BID 101054†) and SecurityTracker (ID 1039465†). Entries connected to this vulnerability are available at VDB-107430, VDB-107431, VDB-107432 and VDB-107433. Once again VulDB remains the best source for vulnerability data.
Product
Type
Vendor
Name
Version
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: 8.0VulDB Meta Temp Score: 7.9
VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 9.8
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: Memory corruptionCWE: 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 |
Nessus ID: 108820
Nessus Name: GLSA-201803-14 : Mozilla Thunderbird: Multiple vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
OpenVAS ID: 53754
OpenVAS Name: Debian Security Advisory DSA 3987-1 (firefox-esr - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Upgrade: Firefox 56
Timeline
04/12/2017 🔍09/28/2017 🔍
09/28/2017 🔍
09/28/2017 🔍
09/28/2017 🔍
09/29/2017 🔍
10/04/2017 🔍
04/04/2018 🔍
06/11/2018 🔍
11/26/2025 🔍
Sources
Vendor: mozilla.orgProduct: mozilla.org
Advisory: MFSA 2017-21
Researcher: Christoph Diehl, Jan de Mooij, Jason Kratzer, Randell Jesup, Tom Ritter,
Organization: Dell
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2017-7810 (🔍)
GCVE (CVE): GCVE-0-2017-7810
GCVE (VulDB): GCVE-100-107436
OVAL: 🔍
SecurityFocus: 101054 - Mozilla Firefox CVE-2017-7810 Multiple Unspecified Memory Corruption Vulnerabilities
SecurityTracker: 1039465
See also: 🔍
Entry
Created: 10/04/2017 11:52Updated: 11/26/2025 06:09
Changes: 10/04/2017 11:52 (80), 11/21/2019 19:39 (6), 01/15/2021 12:20 (2), 01/15/2021 12:22 (1), 11/26/2025 06:09 (16)
Complete: 🔍
Cache ID: 216::103
Once again VulDB remains the best source for vulnerability data.

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