CVE-2021-39595
An issue was discovered in swftools through 20200710. A stack-buffer-overflow exists in the...
An issue was discovered in swftools through 20200710. A stack-buffer-overflow exists in the function rfx_alloc() located in mem.c. It allows an attacker to cause code Execution.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
An issue was discovered in swftools through 20200710. A stack-buffer-overflow exists in the function rfx_alloc() located in mem.c. It allows an attacker to cause code Execution.
- Record
CVE-2021-39595- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:P - Weakness
- CWE-787
- Updated
- 2026-11-02
CVE ListNo score
An issue was discovered in swftools through 20200710. A stack-buffer-overflow exists in the function rfx_alloc() located in mem.c. It allows an attacker to cause code Execution.
- Record
CVE-2021-39595- Updated
- 2026-11-02
EUVDEUVD-2021-25952No score
An issue was discovered in swftools through 20200710. A stack-buffer-overflow exists in the function rfx_alloc() located in mem.c. It allows an attacker to cause code Execution.
- Record
EUVD-2021-25952- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-572w-75xw-3g5fNo score
An issue was discovered in swftools through 20200710. A stack-buffer-overflow exists in the...
An issue was discovered in swftools through 20200710. A stack-buffer-overflow exists in the function rfx_alloc() located in mem.c. It allows an attacker to cause code Execution.
- Record
GHSA-572w-75xw-3g5f- Weakness
- CWE-787
- Updated
- 2026-11-02
OSVUBUNTU-CVE-2021-39595
An issue was discovered in swftools through 20200710. A stack-buffer-overflow exists in the function rfx_alloc() located in mem.c. It allows an attacker to cause code Execution.
- Record
UBUNTU-CVE-2021-39595- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
Affected products
Affected packages
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-39595 is a high vulnerability (CVSS 7.8) in Swftools, published September 20, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.09%, the 65th percentile. No source names a fixed version.