CVE-2020-21686
Severity Score
5.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
1
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
Track*
*SSVC
Descriptions
A stack-use-after-scope issue discovered in expand_mmac_params function in preproc.c in nasm before 2.15.04 allows remote attackers to cause a denial of service via crafted asm file.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:Track*
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2020-08-13 CVE Reserved
- 2023-08-22 CVE Published
- 2023-08-26 EPSS Updated
- 2024-10-07 CVE Updated
- 2024-10-07 First Exploit
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-562: Return of Stack Variable Address
CAPEC
References (1)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|---|---|
| https://bugzilla.nasm.us/show_bug.cgi?id=3392643 | 2024-10-07 |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Nasm Search vendor "Nasm" | Netwide Assembler Search vendor "Nasm" for product "Netwide Assembler" | < 2.15.04 Search vendor "Nasm" for product "Netwide Assembler" and version " < 2.15.04" | - |
Affected
| ||||||